Hynoski suffered a chip fracture to the lateral plateau and injured his left medial collateral ligament on the second play of Wednesday's OTAs. The fracture to the lateral plateau is a bone chip in his tibia, the larger -- and weightbearing -- of the two leg bones.
Newsday's Tom Rock said that MCL injuries are usually treated non surgically, so it's likely that the surgery is to repair the fracture and not the ligament.
"I am going to set my mind to being ready for the first game of the regular season," Hynoski said to Giants.com. "They said that is not an unrealistic goal, and I will do everything in my power to be ready for the start of the season."
Dr. Russell Warren, team physician, will perform the surgery.
Tight end Bear Pascoe is the backup fullback in camp.
From Rotoworld: It's actually a positive revelation for Hynoski. When he went down during Wednesday's OTA session, it looked like could have blown out his ACL or patella. Instead, he will undergo surgery Friday and has a realistic shot at being back for Week 1. Hynoski graded out as Pro Football Focus' fifth-best fullback in terms of blocking last season.
Pascoe is a versatile player, but the team may not feel he's a viable full-time solution at FB. I think it's a foregone conclusion they bring in a veteran just in case Hynoski cannot make it back for the start of season or has a setback. Pascoe is also the best blocking TE on the roster, so the Giants may not want to take off the line until either Brandon Myers and/or Adrien Robinson can be relied on to block.