He said he'll come in for treatment on Saturday and see if the trainers feel like he can get a cortisone shot in the knee. He's already had one shot there this season. Hamilton still hopes to play Saturday.
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Hamilton was moved from center to left field in the fifth inning (switching spots with David Murphy) after experiencing some discomfort. Julio Borbon then replaced Hamilton, who went 1-for-3 on Friday and is hitting .362 for the season, in the bottom of the seventh.
"It was hurting before everything started [Friday], the batting practice and everything," Hamilton said after the Rangers' 9-7 loss. "The pain part doesn't bother me, it's the giving out on me. I don't want to be out there, especially in center field, an important spot in the field, and if I can't go get a ball, we need to put somebody out there who can."
Hamilton, who has 23 home runs and 75 RBIs, has played through the tendinitis at various points this season. He said the knee also started to bother him at the plate, but he noticed it the most as he came in to play a hit by Alberto Callaspo in the fourth.
Richard Durrett covers the Rangers for ESPNDallas.com. You can follow him on Twitter or leave a question for his weekly mailbag.
