Rams safety Matt Daniels finds himself playing catch-up again. Signed as an undrafted free agent following the 2012 NFL draft, Daniels, a standout player from Duke University, saw special-teams action in four games as a rookie before suffering a season-ending knee injury in the Rams’ loss to the New England Patriots in London. He battled back to regain a roster spot last year, only to go down with a fractured ankle in a Week 2 loss to the Falcons in Atlanta. “Both times, I was blocking and a teammate ended up rolling up on me and I ended up hurt,’’ the 24-year-old Daniels said following Saturday’s practice at Rams Park in Earth City. “It’s been tough — two unfortunate events that took place — but I try not to dwell on them. I feel good and I’m back at it again. “I’m just trying to move on and help this football team.’’ Interestingly, Daniels said coming back from the ankle injury was tougher than the ACL surgery. “To be honest, I would’ve preferred another ACL,’’ he said. “With the ankle, I wasn’t able to walk for four months. After the ACL, they have you walking in two weeks, so at least you have a chance to strengthen the leg and start working your way back. “In the ankle, there are so many different types of muscles and tendons that need to be built back up. And since it was the same leg as the knee, I had to work to strengthen the quad as well.’’