Washington Redskins Riley was selected by the
Washington Redskins in the fourth round (103rd overall) of the 2010 NFL draft. He was signed to a contract on June 18, 2010. He was inactive most of the 2010 season. He played very well during times that he was on the field, but also made costly penalties, most notably he committed a 15-yard block in the back penalty against the
Minnesota Vikings, nullifying
Brandon Banks' punt return touchdown that would have won the game. In the 2011 season, Riley would have his first career start in Week 10 against the
Miami Dolphins. He would continue being the starting right inside linebacker in place of
Rocky McIntosh. In Week 16 against the Minnesota Vikings, Riley recorded his first career sack. Riley finished the season playing all 16 games, starting eight of them, and recording 68 combined tackles, one sack, and four pass breakups. Riley maintained his starting position at the right inside linebacker position by the start of the
2012 season. In Week 2 against the
St. Louis Rams, he recorded his first career forced fumble from wide receiver
Danny Amendola, which was recovered by
Josh Wilson and returned 30 yards for a touchdown. Riley continued to start at the "Ted" inside linebacker position at the start of the
2013 season. He recorded his first career interception on
Kansas City Chiefs backup quarterback
Chase Daniel in a Week 14 loss. Long-time
defensive captain,
London Fletcher, personally supported that the Redskins re-sign Riley after the season when Riley would become a free agent. During Fletcher's retirement announcement, he announced his confidence in Riley's abilities and stated "But as this season has gone, I really wanted to help Perry Riley develop a little bit more. I think he’s at that point where Perry doesn’t need me anymore. He’s that player that I know he can be." Riley was set to become a free agent in 2014, and it was announced on the day before free agency began that Riley had re-signed with the Redskins to a three-year, $13 million contract. He was released by the Redskins on August 30, 2016.
Oakland Raiders On October 4, 2016, Riley was signed by the
Oakland Raiders. Riley started all 11 games he played for the Raiders, compiling 38 tackles and 10 assists. ==NFL career statistics==