Phillips remained in the game, but later hurt his right hand, also. He was seen checking it throughout the sixth inning before he was replaced by Ivan De Jesus Jr. in the field for the bottom of the seventh.
"It was kind of a combination," Reds manager Bryan Price said. "He had a problem with the left hand on a swing. I think he was going to be able to play through that. But then on his right hand when he went back in to try and tag [Curtis] Granderson at second, he got his hand jammed on that play. Right now, both hands are probably on ice."
On Wednesday at Pittsburgh, Phillips was scratched from with a jammed left thumb -- an injury he sustained during Tuesday's game when he tagged Gregory Polanco as he attempted to steal second base.
The latest development came as the Reds endured a three-game sweep at the hands of the Mets, including two losses on Sunday. Phillips extended his hitting streak to six games when he led off the series finale with a home run off of Matz. It was originally ruled a single off the wall, but a crew chief review showed the ball cleared the fence and hit a railing above the orange line.
Phillips is batting .287 with five home runs and 30 RBIs.
• The Reds announced that their June 18 rainout vs. the Tigers has been rescheduled for 7:10 p.m. ET on Aug. 24 at Great American Ball Park. With no exchange necessary, fans holding tickets for June 18 can present that same ticket at the gate for the rescheduled game. For more information, go to reds.com.
Mark Sheldon is a reporter for MLB.com. Read his blog, Mark My Word, follow him on Twitter @m_sheldon and Facebook and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.