Braves OF Ronald Acuna Jr. (knee) exits game vs. Pirates

(Photo credit: Charles LeClaire-USA TODAY Sports)

Atlanta Braves star outfielder Ronald Acuna Jr. sustained an apparent left knee injury during the first inning of Sunday's game against the host Pittsburgh Pirates.

Acuna, the reigning National League MVP, led off the game with a double to right-center field off Pirates left-hander Martin Perez.

Acuna made a move toward third base with Marcell Ozuna at bat and fell awkwa