The Tonight Show with Jay Leno NBC 11:35 p.m. | Everyone's favorite boxer-turned-kitchen-appliance-entrepreneur, George Foreman, visits. D.C. United at Columbus Crew ESPN2 8 p.m. | Wunderkind Freddy Adu was scoreless as a sub in United's first two games.
NFL Europe, Rhein Fire at Hamburg Sea Devils NFL Network 1 p.m. | Former Heisman winner Eric Crouch--now with Hamburg--works on his transition from QB to safety. Jordan Classic ESPNU 8 p.m. | Top high schoolers play at Madison Square Garden.
Nextel Cup Samsung/Radio Shack 500 FOX 12:30 p.m. | The boys take to the wide-open spaces of the 1.5-mile Texas Motor Speedway. MCI Heritage CBS 3 p.m. | Expect extra holes in Hilton Head, where there's been sudden death three times in four years.
Boston Marathon OLN 11:30 a.m. | 20,000 runners go from Hopkinton, Mass., to Copley Square when the world's oldest annual marathon commemorates Patriots' Day for the 109th time. Reggie TV NBA TV 12 p.m. | Another marathon: Reggie Miller's top games.
In Their Own Words: Steve Mariucci NFL Network 9 p.m. | Get to really know the Lions as their coach wears a wire at practice. College baseball, LSU at Tulane ESPN2 7 p.m.| Who's the Pelican State's best? Tulane is No. 3, but No. 22 LSU has five CWS titles.
World Poker Tour Travel Channel 9 p.m. | Six-time World Series winner Daniel Negreanu goes for the $1.8 million top prize in Vegas. Ring of Fire: The Emile Griffith Story USA 9 p.m. | The documentary (page 56) explores the life of the controversial boxer.
NCAA Women's Gymnastics Championships | Led by freshman phenom Ashley Postell, top-ranked Utah goes for its first championship since 1995. NBA's Top Ten Greatest History Channel 8 p.m. | Fans voted on the league's top players, upsets, shots and more.