Ken Griffey Junior left the Cincinnati Reds' game at Milwaukee Saturday night after he strained his right hamstring while running down a fly ball.
Reds Team Doctor Timothy Kremchek says an MRI shows his hamstring is partially torn. It is not the same hamstring he injured in 2001.
He will attend baseball's ceremonies honoring the members of the 500-homer club, but he will most likely not take part in the Home Run Derby or in the All-Star Game.
In the fourth inning, Griffey was chasing down a fly ball hit into the right-center field gap by Brady Clark. As Griffey neared the warning track in a full sprint, the ball bounced off his glove and ended up as a triple. Griffey appeared to hurt his leg as he landed on it, but continued to track down the ball and walked off the field immediately after the play with no apparent limp.
Griffey is 20th on the career home runs list with 501.