Jaso was 0-for-3 on Wednesday which extended his hitless streak to 17 at-bats.

Jaso has seen his batting average fall from .285 down to .269 during his current slide. Of more concern for Jaso is his .347 OBP so far in 2014, coming on the heels of OBP's of .394 and .387 in 2012 and 2013. He does not hit for a lot of power, but his value was in how often he got on base in the past two seasons, something he is not doing nearly as well in 2014. He should continue to get almost all of the at-bats agaisnt right-handed pitchers in his platoon with Derek Norris.

Jaso is not in the lineup Wednesday vs. the Astros.

Jaso will get the day off with lefty Dallas Keuchel starting for the Astros. Derek Norris starts behind the plate, catching for Jason Hammel.

John Jaso went 2-for-5 and drove home three runs on Sunday, leading the Athletics to a 9-3 victory over the Rangers in Texas.

Jaso singled home a run as part of a five-run uprising in the second inning. He would later add a two-run double in the fifth inning, increasing the A's advantage to 8-2. He has been one of the better offensive catchers in the American League this season, slashing .286/.361/.471 with eight homers and 38 RBI.

John Jaso (knee) has returned to the Athletics starting lineup for Sunday's game against the Rangers.

Jaso was lifted from Saturday's contest due to irritation in his left knee. He says he's good to go though and will take his place behind the dish on Sunday.

John Jaso exited Saturday's game versus the Rangers with left knee irritation.

The good news is that Jaso said it was more of a cramp than anything else and he expected to be available to play Sunday. "A sharp pain. It kind of scared me, then it gradually went away," Jaso said. "I'm fine now."

John Jaso went 2-for-3 with an RBI in a win over the Blue Jays on Sunday.

Jaso hit an RBI single in the fourth inning, his 26th RBI of the year. The catcher is batting .269/.352/.442 and has proven capable in the leadoff spot for the A's. He's batting .351/.385/.811 in that role this season.

John Jaso went 2-for-6 with four RBI in Sunday's lopsided win over the Orioles.

Jaso did his damage in waves, swatting a two-run double in the third inning, delivering an RBI single in the fourth and bringing in another with a groundout in the fifth. The runs batted in raised his RBI total to 19 to go with a .294/.382/.490 line.

John Jaso went 2-for-4 with a solo homer Thursday against the Yankees.

His first-inning homer against Masahiro Tanaka was the only offense of the afternoon for Oakland. Jaso now has six home runs on the season and owns a healthy .293/.387/.489 batting line. The A's have a heck of a platoon with him and Derek Norris.

John Jaso returned to action on Tuesday May 27.

John Jaso returned to action on Sunday May 25.

John Jaso (back) is expected to return to the Athletics lineup on Monday.

Jaso has sat out the last couple of games due to tightness in his back that he sustained from playing on the turf earlier in the week. Derek Norris will continue to handle the work behind the plate while he's sidelined.

John Jaso remains out of the Athletics starting lineup for Saturday's contest against the Blue Jays.

He is dealing with some tightness after playing on the turf the past few days. Derek Norris will again get the call behind the dish for the A's and hit second against R.A. Dickey.

John Jaso is not in the Athletics' lineup Friday because he's dealing with a little tightness after playing on turf the last few days.

It's not clear what body part(s) is tight, but it's not viewed as a big deal. Jaso had been slated for DH duty, but that will now fall to Kyle Blanks.

John Jaso homered in the third and delivered a game-winning double in the 10th as the A's beat the Nationals 4-3 on Saturday.

Jaso thought he might have a second homer in the 10th, but it bounced off the wall in left instead. Fortunately, there were two outs, so Nick Punto was able to run right away and score from first to win the game. It was Jaso's second ever walkoff hit. He has three homers in 80 at-bats this year, matching his total from 207 at-bats last year. He's combined with Derek Norris to give the A's terrific production from the catcher spot so far this year.

John Jaso went 2-for-2 with a walk against the Red Sox on Friday.

Jaso tripled and singled in the loss. The 30-year-old now has a .267/.375/.383 batting line through 24 games this season. While it's not an ideal set-up for fantasy owners, the Jaso-Derek Norris platoon is a productive one.

John Jaso went 2-for-3 and hit his second homer versus the Giants on Friday.

It's great news for the A's that Jaso has shaken last year's concussion symptoms and is back catching. However, he probably would have been a bit more valuable for fantasy purposes while being used primarily as a DH, as appeared to be the original plan. Right now, it looks like he'll share time with Derek Norris behind the plate and see very sporadic duty at DH.

John Jaso caught a second straight game on Monday.

It's the first time he's done so this spring. Jaso missed the final two and a half months of the 2013 season due to post-concussion issues, but he hasn't had any recurrences this spring. The plan for now is for him to be the club's regular catcher when the opponent has a right-hander on the mound. Derek Norris will be behind the dish against lefties.

John Jaso went 1-for-3 with a solo home run on Tuesday against the Brewers.

Jaso's first blast of the spring came off of Tyler Thornburg in the sixth inning. While Jaso isn't likely to get the lion's share of playing time behind the dish, he will get some extra cuts as the DH and could surpass his current career high of 404 plate appearances.

John Jaso (elbow) is expected to resume catching on Tuesday.

The veteran backstop has yet to resume catching due to a sore elbow after being hit by a pitch in Wednesday's game. With the A's likely to carry three catchers on their Opening Day roster, there's a good chance that a large portion of Jaso's at-bats could come as the designated hitter.

John Jaso (elbow) is expected to see action at designated hitter during the second half of Saturday's game against the Angels.

Jaso was hit by a pitch above his right elbow on Wednesday, and has experienced significant bruising in the area. He's still having difficulty throwing, which means it'll be a few days still before he gets back behind the dish.