"There's no timetable," Scioscia said. "Vernon was examined today, had some tests done. We're a little relieved [in light of] where he was last night and what he felt. There's a strain there. Nothing is out of place. It doesn't require any kind of surgery. It just needs time to heal."
Wells was coming alive with the bat after a sluggish start, having produced three homers and seven RBIs in his past eight games.
"It's a shame to see that happen to Vernon," right fielder Torii Hunter said. "He was just starting to feel good at the plate. I know what [injured] groins are like. You've got to give it some time to heal."
Hunter was plagued by groin issues in 2009 after running into walls at Dodger Stadium and in San Francisco. He had hernia surgery after the season and didn't feel all the way back physically until the second half of the 2010 season.