Ross doesn't need surgery, but timetimable unclear

After stumbling through a brutal start to the 2016 campaign, the San Diego Padres received some good news Thursday about right-hander Tyson Ross, who won't need surgery on his injured right shoulder, manager Andy Green said.

Despite the encouraging MRI results, though, the Padres don't have a firm timetable for Ross, who hasn't pitched since allowing eight runs in an Opening Day loss to the Los Angeles Dodgers.

"The good news was (it's) non-surgical," Green told MLB.com's AJ Cassavell. "We'll take a couple more weeks, re-evaluate, see where he is. Hopefully he's back on the mound quick for us."

Ross, an All-Star in 2014 who crafted a 3.26 ERA (112 ERA+) over a career-high 33 starts last year, played catch Thursday for the first time since hurting his shoulder, but admitted he didn't feel as comfortable as he would've liked.

"It was good to get out there and play catch, but it wasn't where I wanted it to be," Ross said. "I've been rehabbing pretty aggressively and made some pretty good strides as far as strength is concerned, but it wasn't the first day of catch I was looking for."

In his absence, the Padres' rotation has struggled, managing the sixth-worst ERA (4.73) and HR/9 rate (1.08) among National League teams.