Jurickson Profar collapsed as he was trying to walk off the field after a collision with San Diego Padres teammate C.J. Abrams.

He was then placed on a stretcher and driven away on a cart during Thursday night's game against the San Francisco Giants.

"No tingle or anything in the arms, but what we're worried the most is probably a concussion at this point," said Bob Melvin, who added that Profar never lost consciousness. "But they're checking everything out."

Profar and Abrams both went after a fly ball hit by Tommy La Stella into shallow left field in the fifth inning. Abrams made the catch with his back to the infield and his left knee hit Profar in the left jaw as Profar appeared to be positioning himself for a diving catch.