Redskins outside linebacker Ryan Kerrigan celebrates a second-quarter sack of Jacksonville Jaguars quarterback Chad Henne at FedEx Field. (Katherine Frey/The Washington Post)

Redskins linebacker Ryan Kerrigan had arthroscopic surgery on his left knee and will miss some of the team’s offseason practices, Kerrigan said. He added that while no timetable for his recovery has been set, he doesn’t expect it to be lengthy.

A two-time Pro Bowl pick and Washington’s sack leader last season, Kerrigan had the same knee scoped in January 2014 after playing with a partially torn meniscus in 2013.

Kerrigan’s rehabilitation process lasted a few weeks, and he went on to record a career-high 13.5 sacks last season.

Kerrigan, the 16th overall pick of the 2011 draft, is entering the final year of his contract, and he and team officials both have expressed optimism that they can agree to a new deal.

CSNWashington first reported news of Kerrigan’s knee surgery.

Brandon Scherff will shift to right tackle from left tackle, and Preston Smith will shift from defensive end to linebacker in their rookie seasons with the Redskins. Which player will have a more difficult time making the change? (Post Sports Live/The Washington Post)