"We wanted to let it slow down," Gomes said. "Hopefully, that's the end of it and we can move the process along quicker than it was the last time."
No date has been set for Gomes' next rehab appearance as long toss and bullpen sessions must come first. He called the process "starting over from a much stronger point."
This is the first stay on the disabled list for the third-year pitcher. He underwent Tommy John surgery while at Tulane University, but he said the uncertainty of this injury has been harder to deal with emotionally.
Gomes could not pinpoint a cause for the setback.
"It's extremely frustrating because I don't know when I'll pitch again, but there's no use being negative," Gomes said. "All you can do is stay positive every day and keep going about your business, knowing that if you keep doing the right thing, you'll be healthy and ready to contribute whenever I'm done with my rehab stint."
Gomes is 0-1 on the season with a 5.40 ERA in 14 appearances spanning 11 2/3 innings.
Sam Strong is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.