Morris left the team before it played the Angels in Los Angeles on Tuesday. Marlins president of baseball operations Michael Hill said Morris first notified the team of discomfort in his hip on Saturday. Hill told the Sun-Sentinel he doesn't think the injury will be a long-term problem.
"I don't want to jump to any conclusions, but at the moment I don't think it's anything major," Hill said.
Morris has a 0.48 ERA, 1.06 WHIP and 34 strikeouts for Miami this season.
The Marlins are in third place in the NL East at 65-66, four games behind the San Francisco Giants for the second Wild Card spot.
- Paul Palladino