The club listed Yelich as day-to-day, but he remains positive and believes he will just miss a couple of days.
"At this point, I think that's safe to assume I don't think it will be a DL stint, that's good news," Yelich said.
The way Yelich was moving around on Tuesday night, it wasn't so sure.
"I don't think there were any pulls, so you treat it," president of baseball operations Michael Hill said. "He's already moving around 10 times better than he was yesterday."
The Marlins have been hit hard by injuries this month, and they can ill-afford to lose one of their best all-around players. Yelich has batted mostly third and occasionally second for the Marlins, and his slash line is .256/.323/.381 with six home runs and 21 RBIs.
Marcell Ozuna started in center field on Wednesday, with Ichiro Suzuki playing right field, and Giancarlo Stanton was used as the designated hitter.
The Marlins are off on Thursday, and there is a chance Yelich could be ready for the series opener with the Angels at Marlins Park on Friday. He has sacrificed his body in the outfield this year, crashing into the wall on a number of occasions.
"He's seemed to find a wall in pretty much every series," Hill said. "It might be an accumulation of that. Make sure we get it under control, and don't let it get any worse and have him avoid the disabled list."
Yelich dismissed the crashing-into-the-wall theory, but he acknowledged just being sore.
"I don't think that has anything to do with it," Yelich said. "A little banged up yesterday. That's part of it. I'll be alright."
After consulting with Marlins physician Dr. Lee Kaplan and respected orthopedic surgeon Dr. Neal ElAttrache in Los Angeles a few days ago, rest is the recommended treatment for Wei-Yin Chen, who is on the DL with left arm fatigue.
Chen is dealing with a partial tear in his throwing elbow, something he has had for years. There has been no discussion of Tommy John surgery, Hill said.
"It's a sprain," Hill said. "Everybody hears 'tear' and fears the worse, but a sprain is technically a tear. … Like, with anything, if there is an injury, you try to maintain it and give it the rest that it needs to be effective."