Hamilton said he received treatment all night but is unsure of his status for the playoffs. He has been dealing with shoulder soreness for most of September and said part of his right shoulder flared up with tightness and discomfort before Wednesday's game as well.
The outfielder played in Tuesday night's loss to Seattle, his only game appearance since Sept. 4. The Angels clinched the American League West division title on Wednesday.
Hamilton, 33, is hitting .263 with 10 home runs and 44 RBI in 89 games this season.
Angels starter Jered Weaver was scratched from his scheduled start Thursday in order to give the pitcher more rest heading into the playoffs.
- Molly Geary