The Toronto Blue Jays called up outfield prospect Jonatan Clase, who they acquired in a trade with the Seattle Mariners in the Yimi Garcia deal, on Thursday from Triple-A Buffalo. With the season winding down, the Blue Jays can get a good look at Clase, who is a gifted athlete with real upside in the long term. The 22-year-old is currently listed by MLB Pipeline as Toronto's No. 6 prospect. Especially with outfielder Daulton Varsho (shoulder) out for the remainder of the year after shoulder surgery, Clase could get some nice run to close things out through the end of September in Toronto's outfield. The switch-hitting Dominican made his MLB debut with Seattle earlier this year and went 8-for-41 (.195) with a double, three RBI and three steals in 19 games. In 94 games with Buffalo and Triple-A Tacoma, Clase has hit .263/.344/.439 with 12 homers, 45 RBI and 38 steals in 426 plate appearances.

Toronto Blue Jays outfield prospect Jonatan Clase has looked quite comfortable since joining his new club. Clase was traded to Toronto in exchange for relief pitcher Yimi Garcia. In his first nine games with Triple-A Buffalo, the 22-year-old holds an excellent .294/.351/.474 slash line with three doubles, one home run, four RBI, two swiped bags, and a 3:7 BB:K ratio. Previously, at Triple-A Tacoma earlier this summer, Clase held a solid .274/.373/.483 with 26 stolen bases. In the major leagues this summer, the switch-hitting bat struggled with a .195 AVG. However, Clase could be worth stashing in deeper redraft formats if he continues to play well at Triple-A, as he possesses elite speed that can be very valuable in the stretch run.

The Toronto Blue Jays are acquiring outfield prospect Jonathan Clase from the Seattle Mariners on Friday in exchange for right-handed reliever Yimi Garcia, according to sources. Clase was Seattle's No. 10 prospect, per MLB Pipeline. The 22-year-old will now have a new start in the American League East. Clase made his major-league debut with the Mariners this year and struggled to a .195/.233/.220 slash line with a double, three RBI, three steals and 14 strikeouts in 19 games played. The 5-foot-10, 150-pounder could get more run with the Jays to close out the year, making him worth a look in AL-only leagues. Despite his small frame, Clase could develop some legitimate power, but speed is going to be his primary calling card. The Dominican outfielder stole 26 bases in 59 games for Triple-A Tacoma and had 79 swipes in the minors in 2023.

The Seattle Mariners recalled outfielders Jonathan Clase and Cade Marlowe from Triple-A Tacoma on Tuesday. Marlowe is starting in right field for the M's and is hitting ninth against the visiting Los Angeles Angels and right-hander Jose Soriano. Marlowe, a left-handed hitting 27-year-old, made his big-league debut in 2023 and hit .239 (21-for-88) with three homers, three doubles, two triples, 11 homers and four steals in his first 34 games. He hit .235 with 13 homers for Tacoma this year, and he and Clase, the team's No. 10 prospect per MLB Pipeline, could be battling for playing time with Julio Rodriguez (ankle) on the 10-day injured list. Clase, a 22-year-old switch-hitter, has looked overmatched in his MLB debut in 2024, going 8-for-41 (.195) at the plate with no homers, a double, three RBI, three swipes and a 14:2 K:BB in 43 trips to the plate and 19 games played.

The Seattle Mariners placed outfielder Dominic Canzone (groin) on the 10-day injured list on Wednesday with a right-groin strain and recalled outfield prospect Jonatan Clase from Triple-A Tacoma in a corresponding move. Canzone hurt his groin on Sunday while making a catch against the Toronto Blue Jays and then made things worse on Tuesday night running out a double in the win over the San Diego Padres, and now he'll be out through next week's All-Star break. The 26-year-old left-handed-hitting outfielder has struggled in a part-time role in his first full season in Seattle this year, hitting .211 (30-for-142) with a career-high seven home runs and 14 RBI in 54 games. Clase, the team's No. 10 prospect per MLB Pipeline, will give Seattle outfield depth after he went 6-for-34 (.176) with a double and 13 K's in his first 15 big-league games earlier this year.

Seattle Mariners outfield prospect Jonatan Clase has three home runs in his last six games for Triple-A Tacoma and four in his last 10. The 22-year-old has been seeing the ball well since his return to the minors, reaching base safely in 27 of 29 games and going 36-for-121 (.298) during that time. He's also logged 14 stolen bases since his return. Unfortunately he wasn't able to stick with the big league club but hopefully his skills will translate to the majors his next time around as he could be a difference-maker on the basepaths for the Mariners and for fantasy managers.

Seattle Mariners outfield prospect Jonatan Clase had a productive game on Thursday where he went 3-for-5 with a single, a triple, and a home run with one RBI and a stolen base. Clase has now tallied at least one hit in each of his past four games and holds an overall .281/.390/.485 slash line with seven long balls, 27 RBI, 23 swiped bags, and a 37:61 BB:K ratio in 50 games this season. The 22-year-old got a brief taste of the major leagues earlier this season, where he posted a mere .176 AVG in 15 games. However, he showcased his elite speed with two stolen bases during that short window. Clase has a strong chance of returning to the majors later this summer and is worth adding when promoted, as he will provide elite stolen base production.

Seattle Mariners outfield prospect Jonatan Clase was sent down to Triple-A Tacoma on June 3 and has been productive upon his return to the Rainiers. Clase is hitting .300 with Tacoma in June with a home run, five RBI, and six stolen bases. The No. 10 prospect for the Mariners started the season at Triple-A and got a taste of the big leagues, hitting .176 in 34 at-bats with three RBI and two stolen bases. The 22-year-old boasts top-end speed (70-grade) and translated that to 79 steals across two levels of the minors in 2023. Those wheels will play at any level, but Clase's next step is proving he can consistently get on base. If he improves in that regard, he could be an impact player in fantasy leagues of all sizes upon his return to Seattle.

Seattle Mariners executive vice president and general manager of baseball operations Justin Hollander announced on Monday that the team optioned rookie outfielder Jonatan Clase to Triple-A Tacoma. The 22-year-old appeared in his first 15 big-league games and went 6-for-34 (.176) with no homers, a double, three RBI and 13 strikeouts in 35 plate appearances. In 28 games for Tacoma in 2024, Clase has hit .255 (28-for-110) with four home runs, 16 RBI and 12 stolen bases. The Mariners' No. 10 prospect, per MLB Pipeline, only started three games while with the big-league roster and could use more everyday playing time back on the farm. The Dominican switch-hitting outfielder relies mostly on speed, but there's also some intriguing power despite his 5-foot-9 frame. Clase is only worth stashing in dynasty/keeper leagues in 2024.

Seattle Mariners outfield prospectJonatan Clasewas promoted to the big-league roster on April 15. Before that, he was 14-for-45 in Triple-A Tacoma with four doubles, two triples, four home runs, 11 RBI, and three steals. In the majors, he went 6-for-27 with a double and two stolen bases. However, he was sent back down to Triple-A at the end of April. Since his demotion, he's 13-for-60 with three doubles, a triple, two homers, five RBI, and three steals. Some of the differences in production can explained by a disparity in BABIP. Before getting called up, Clase had a .375 BABIP, well above the league average of .300. Since being demoted, his BABIP is .275. Despite the dip in production, Clase still has an impressive .373 OBP and .400 SLG since rejoining the Triple-A squad. The 21-year-old is on the taxi squad and could be promoted to the big leagues soon.

Seattle Mariners outfield prospect Jonatan Clase has been optioned to Triple-A Tacoma on Monday. The 21-year-old struggled during his brief stint with the team. He slashed .222/.250/.259 with zero home runs and three RBI in 28 plate appearances. Clase has plenty of potential and should get another shot later in the summer. In the meantime, outfielder Sam Haggerty has been recalled to take the spot on the active roster. He was hitting well in the minors, but is unlikely to do enough to carry viable fantasy value.

Seattle Mariners outfield prospect Jonatan Clase will join the big league club on Monday in place of Dominic Canzone, who is headed to the IL. Clase, the Mariners' number 10 prospect according to MLB Pipeline, has mashed in Triple-A so far this season, triple-slashing .308/.404/.641 with two homers and two steals. The 21-year-old should have ample opportunity for playing time in a struggling Mariners lineup. He could be a solid speculative add for fantasy, as he provides decent pop and plenty of speed.

Seattle Mariners outfield prospect Jonatan Clase is coming off a big week at High-A in which he went 11-for-28 with four doubles, four homers, and seven RBI. He also tallied three walks, eight strikeouts, and four stolen bases. Outside of the high strikeout rate, these are impressive results that could translate to a long and successful career for Clase. A talented baserunner with similarly promising bat-to-ball skills, Clase's strong month of April should generate some long-term interest in dynasty leagues.

Seattle Mariners outfield prospect Jonatan Clase, at 5-foot-9 and 150 pounds, is an undersized speed threat who signed with the club back in 2018. Scouts instantly fell in love with his baserunning, but once he joined the Mariners' organization, he started to show off promising bat-to-ball skills and equally impressive power. The outfielder's top-notch bat speed was presumably the source of his unexpected surge of home runs in 2022, and that appears to be continuing into 2023. The 20-year-old is coming off a big week at High-A in which he went 7-for-21 with three homers, seven RBI, six walks, and nine strikeouts. He also stole a whopping seven bases during this five-game span. Clase showed a little bit of everything at the plate, and while he's still a while from reaching the majors, there's no doubt that he could have a significant fantasy impact in the future if his power is truly here to stay.