FORT MYERS, Fla. -- John Lackey fired 2 2/3 innings in his first action since Game 6 of last year's World Series as the split-squad Red Sox lost to the Marlins, 5-4, on Tuesday afternoon at JetBlue Park.
Boston's right-hander, slotted in as the team's No. 2 starter, got what he needed from the outing. Lackey gave up four hits and walked none while striking out two.
"I felt all right. That was a good place to start," said Lackey. "I pretty much threw all fastballs the first two innings, tried to work on a few things in that third inning. I got a little bit tired and will probably be a little sore tomorrow. It's just a little step up in intensity, but a good place to start."
Brian Flynn, who has an outside shot at winning a spot in the Marlins' rotation, turned in a strong performance, giving up one hit and no runs over three innings.
"I got used to the umpire and the whole spectrum of the backstop and the fans," Flynn said of his debut this spring. "Having the world champions in the box, essentially, helped the whole process overall. I was able to focus on each individual pitch regardless of the situation. I was happy overall with the outing."
Mike Carp came off the bench and belted a solo home run for the Red Sox. Catching prospect Christian Vazquez continued his strong spring by drilling an RBI single to right.
Kyle Jensen drilled a go-ahead, two-run homer over the Green Monster for the Marlins in the top of the ninth against Red Sox lefty Drake Britton.
Up next: Wednesday marks the Red Sox's lone off-day in the Grapefruit League schedule. Lefty Felix Doubront will pitch in a Minor League game at the Player Development Complex. Jake Peavy, who was slowed by a laceration on his left index finger, will make his Grapefruit League debut in Thursday's 1:05 p.m. ET game, which will air on MLB.TV, against the Twins.
Ian Browne is a reporter for MLB.com. Read his blog, Brownie Points, and follow him on Twitter @IanMBrowne. This story was not subject to the approval of Major League Baseball or its clubs.