The Toronto Blue Jays third baseman left Wednesday afternoon's game with the New York Yankees after he fell into a camera bay while going after a foul ball.
Lawrie was chasing a shallow Mark Teixeira popup in the bottom of the third inning when tumbled over a railing while reaching for the ball.
He took a long fall into the television camera well near the Toronto dugout and appeared to hit his right leg on a metal railing as he fell.
Lawrie was in obvious pain when he got up and was escorted to the clubhouse by manager John Farrell.
The Jays say X-rays were negative and that the Langley, B.C., native is listed as day-to-day.
The injury comes just one day after slugger Jose Bautista was placed in the 15-day disabled list with an injured left wrist.
Lawrie came in hitting .280 with eight homers and 34 RBIs in his second big league season. He was 0 for 2 on Wednesday.