Chirinos allowed one run in five innings before leaving with a hand injury, and the Rays beat the Miami Marlins 7-2 on Sunday to match their longest winning streak this season at six games.
"A little bit of concern," Tampa Bay manager Kevin Cash said. "We're going to get it checked out, for sure, and see how he bounces back tomorrow. Fingers, wrists, all those things are a little tricky."
Chirinos (9-5) gave up two hits but was pulled after 63 pitches due to right middle finger inflammation. Cash said the problem first developed during the fourth inning.
"Just felt a little uncomfortable on some pitches like the slider and the split," Chirinos said through a translator.
Mike Brosseau and Jesus Aguilar both homered and had two RBI each for the Rays, who also won six in a row from May 25-30. Tampa Bay has scored six or more runs in a team record seven straight games.
"When our offense is clicking like that and our pitching is what it has been all year. we're a tough team to beat," Brosseau said.
Brian Anderson homered for the Marlins, who have lost four of five and dropped to an NL-worst 42-67.
"Honestly, we didn't do a whole lot offensively," Marlins manager Don Mattingly said.
Caleb Smith (7-5) gave up three runs -- one earned -- six hits and four walks in five innings. He had been 4-0 in five starts since a June 6 loss at Milwaukee.
"My command wasn't really there," Smith said.
Aguilar had a sacrifice fly and Brosseau an RBI single during a two-run first, and Brosseau homered for a 3-0 lead in the third. All four of his previous homers had come against Baltimore.
Anderson hit a solo homer with two outs in the fourth for the Marlins' first hit.
Aguilar homered in the eighth off Kyle Keller.
With a number of promising infield prospects, Miami 2B Starlin Castro is taking grounders at third base.
Marlins: CF Cesar Puello left after four innings with left hip flexor tightness and is expected to go on the injured list. ... RHP Ryne Stanek (right hip) is expected to return from the 10-day IL Monday.
Rays: Snell, out since July 22, may get a date to resume throwing Monday. ... Reliever Jose Alvarado (right oblique strain) worked a perfect inning for Class A Charlotte and may be back next weekend.
Rays: RHP Charlie Morton (12-3) will face Toronto RHP Jacob Waguespack (2-1) Monday night. In Morton's big league debut on June 14, 2008, he faced Hall of Famer Vladimir Guerrero, and he could get the chance to pitch against his son, Vladimir Jr. "That's kind of cool," Morton said. The senior Guerrero was 1 for 3 off Morton that day with a single to center.
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