Spring training got off to a solemn start as MLB teams wore hats to honor Marjory Stoneman Douglas High School in Parkland, Florida, where 17 people were fatally shot nine days ago.Stoneman Douglas baseball coach Todd Fitz-Gerald and his two sons were guests of the Houston Astros for their spring opener against the Washington Nationals. Members of the school's baseball and softball teams were guests of the Marlins and mingled on the field with players, coaches and CEO Derek Jeter.Teams had the option of wearing he caps, which are black with "SD" in block letters, during the games or only during warmups. Both the Astros and Nationals wore them during Friday's games.MLB ordered more than 2,500 of the caps from New Era, league spokesman Steven Arrocho said. Many teams will have players sign them, and they will be auctioned to benefit the victims and families affected by the shooting.Fitz-Gerald said it was a "relief" to get back to the sport he loves and to stop thinking, at least for a moment, about the tragedy that befell his school. Fourteen students and three teachers were killed, and more than a dozen others were wounded. A former student is in custody on 17 counts of murder.AROUND THE GRAPEFRUIT AND CACTUS LEAGUESASTROS 3, NATIONALS 2Mike Hauschild struck out three over the final two innings to give the defending world champions a win in their spring debut. Max Stassi homered off Jaron Long for Houston. Brady Dragmire took the loss for Washington after surrendering two earned runs in two innings of relief.YANKEES 3, TIGERS 1New Yankees manager Aaron Boone was a winner in his spring opener. Lefty Ryan Carpenter, signed to compete for the fifth starter spot, got the start for the Tigers, giving up a hit and issuing an eight-pitch walk to Giancarlo Stanton in two innings of work.RAYS (SS) 6, ORIOLES 3Yonny Chirinos worked two innings in his start and earned the win. Mike Wright got the start for the Orioles and took the loss. Manny Machado made his spring training debut at shortstop for the Orioles. Chance Sisko hit a three-run homer for Baltimore.RED SOX 4, TWINS 3Fernando Rodriguez worked two innings to get the win in relief of starter Hector Velazquez. Blake Swihart and Jeremy Barfield each doubled for Boston. Aaron Slegers worked two innings in the start for the Twins, striking out two. Ryan LaMarre drove in three runs for the Twins.MARLINS 6, CARDINALS 4Alex Wimmers picked up the win in relief and Javy Guerra worked the ninth for the save. Scott Van Slyke homered twice and drove in five runs for the Marlins. Jack Flaherty started for the Cards and struck out two over two innings. Kolton Wong doubled.RAYS (SS) 6, PIRATES 3Austin Pruitt worked an inning and a third in relief and earned the win, and Edwin Fiero gave up a hit in the ninth and earned the save. Kevin Kiermaier singled to drive in two runs and Brad Miller doubled home two more for the Rays. Austin Meadows doubled twice and singled to drive in two runs for the Pirates.BLUE JAYS 2, PHILLIES 1Curtis Granderson homered to right in his first at-bat as the Blue Jays' leadoff hitter, taking starter Nick Pivetta deep. Joe Biagini started for Toronto and gave up one hit and striking out two over two innings, and seven relievers scattered five hits and struck out eight. Pivetta gave up four hits and walked one in his two innings, striking out three. Mark Leiter worked two innings, striking out two and surrendering two hits. Danny Ortiz belted an eighth-inning homer.METS 6, BRAVES 2Zach Wheeler started and worked an inning in the Mets opener, striking out two and giving up a hit after new manager Mickey Callaway told reporters he would treat the right-hander as a starter. Hansel Robles worked a solid inning, striking out two and giving up a hit and Tyler Bashlor got the win in relief despite walking two and giving up a run in an inning of work. Matt Wisler started and worked two innings for the Braves, giving up two hits and striking out one.