The Redskins have signed free agent tight end Sean Ryan, the team announced on Thursday.

Ryan is a 6-year NFL veteran who has had stints with six NFL teams, most recently with the Kansas City Chiefs.

Ryan adds more depth to the Redskins' tight ends, a unit that includes two-time Pro Bowler Chris Cooley and youngster Fred Davis.

With Ryan on board, it appears the Redskins will not retain Todd Yoder, who is an unrestricted free agent.

Ryan has seen action in 53 career games, including 15 starts. He has totaled 26 receptions for 240 yards and two touchdowns in his career.

In 2009, Ryan appeared in 10 games, with eight starts, for the Chiefs. He caught 14 passes for 135 yards and two touchdowns.

Ryan signed with the Chiefs as an unrestricted free agent on April 21, 2009, after spending parts of the 2008 season with the San Francisco 49ers, New Orleans Saints and Miami Dolphins.

Ryan entered the NFL as a fifth-round draft pick (144th overall) by the Dallas Cowboys in the 2004 NFL Draft.

After appearing in nine games during two seasons in Dallas (2004-05), Ryan was traded to the New York Jets in exchange for an undisclosed draft pick on Aug. 31, 2006.

In two seasons in New York (2006-07), Ryan appeared in 26 games, with four starts, and caught nine passes for 90 yards.

Ryan played college football at Boston College, where he caught 75 passes for 950 yards and 12 touchdowns in four years.

Ryan is a native of Buffalo, N.Y.