MIAMI -- Jon Berti was diagnosed with a concussion and sustained a laceration on the back of his head that required three stitches after being struck by a pitch in Thursday night's 3-2 Marlins loss to the Padres at loanDepot park.

Berti turned away from the 85.2 mph slider from Padres right-hander Austin Adams, but it caught just under his helmet. He immediately went down, then got up on one knee as assistant athletic trainer Brad LaRosa and manager Don Mattingly came out to check on him. The former applied a towel to wipe at a mark with blood. 

Reliever John Curtiss came in to pinch-run for Berti, who walked off on his own power a few minutes later. For Adams, it was his MLB-leading 15th hit-by-pitch. The Marlins went on to score a pair of two-out runs in the seventh.

“It was great to see him get up and walk off, that’s for sure, but the news is not great,” Mattingly said. “Originally, I thought it hit him in the back. And then when we got out there, he said it hit him right under the helmet. You can see there was kind of a horseshoe shape to the little ring. It was good to see him get up. I was hoping he didn’t have a concussion. That wasn’t great.”

As Miami’s super-utility player, Berti has appeared at six positions this season. He started at third base in the series opener, with Brian Anderson nearing a return from the 60-day injured list.

“It's tough to replace that,” Mattingly said. “We've been playing a little bit short here for a couple of days, but [Berti] kind of stretches you where you can go in different directions at different spots, with double [switches], push your pitcher further away. A little harder to do that when you don't have that kind of guy. You have a guy who just plays outfield, just plays infield. Bert allows you to stretch the field a little bit. We're going to miss that.”