The Washington Capitals have signed center David Steckel to a three-year, $3.3 million contract extension and defenseman-forward Tyler Sloan to a two-year, $1.4 million extension. The Capitals also assigned defenseman Karl Alzner to American Hockey League affiliate Hershey. Steckel leads the NHL with a .619 winning percentage on faceoffs.

Boxing: Darnell "The Ding-a-Ling Man" Wilson, "The Persecutor" Mike Paschall, Willie Wilson and Thomas Snow will be on the Ballroom Boxing card Jan. 29 at Michaels Eighth Avenue in Glen Burnie. Doors open at 6:30 p.m. with up to seven pro bouts starting at 8 p.m. For information, call 410-766-7474 or go to ballroomboxing.com.

Indoor football: Wide receiver De'yon Williams, who was an All-Atlantic Coast Conference player at Virginia in 2005, signed with the American Indoor Football Association team.

Major League Soccer: New D.C. United head coach Curt Onalfo named Ben Olsen, Kris Kelderman and Mark Simpson as his assistant coaches. All four are former United players.

- From Sun staff and news services