Puig reported hamstring tightness during the seventh inning Monday night, but played the entire 10 innings. He missed games Tuesday, Wednesday and Friday after Thursday's off-day. He played the whole game Saturday night, getting two hits, but also limped several times during the game.
"Stan [Conte, VP medical services] said he came in a little sore today," Mattingly said.
He said putting Puig on the disabled list was "part of the conversation" earlier in the week, and stressed that keeping Puig active was a decision for the medical department.
"To be honest, if they say DL, I'm fine with it," he said. "I like the way Andre [Ethier] is playing. I'm not pushing to get Yasiel in the lineup. We've got guys in Triple-A swinging the bat. If medical says DL, it's DL."
Additionally, Mattingly said he didn't know if outfielder Carl Crawford would be available after already missing Saturday night's game with a stomach illness.
Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.