Two of the Titans’ top free-agent signees – guard Andy Levitre and tight end Delanie Walker – were sidelined with knee issues during OTA on Friday.

Levitre is still recovering from arthroscopic surgery on his right knee following the 2012 season. He had arthroscopic knee surgery on his left knee during the 2011 season.

He has been doing some running during OTAs and hopes to get on the field – at least for the individual drills – prior to the June 18-20 minicamp.

“(The recovery) is going a little bit slower than I thought, but I don’t think it’s anything I have to worry about,” Levitre said. “It kind of stinks not being able to get out there and actually do the new playbook, but I’ll definitely be good for training camp.”

Walker said he tweaked his knee during Thursday’s indoor practice session and sat out Friday as a precaution. He said he doesn’t believe the injury is serious, but that if it’s still bothering him on Monday, he’ll likely get an MRI.