DETROIT -- Royals second baseman Omar Infante left Friday night's game against the Tigers after five innings because of a left oblique strain.
Club officials said Infante would be re-evaluated on Saturday.
Infante batted twice, striking out the last time. In that final at-bat, he appeared to be stretching that left side.
Oblique strains can require three to four weeks of recovery.
Infante is coming off a career-high seven RBI-game against the Indians on Thursday.