Davis Cup, First Round, U.S. vs. Croatia ESPN2 4 p.m. | After a five-year hiatus Andre Agassi is back with the Yanks. Cavaliers at 76ers 7 p.m. | Super soph LeBron James takes on the league's newest dynamic duo: Chris Webber and Allen Iverson.
Iditarod | The 1,150-mile race begins in downtown Anchorage. Among the 79 mushers: Rachael Scdoris, 19 and legally blind. SI FOR KIDS: Next Snow Search NBC 2 p.m. | The quest to find America's top junior skiers and snowboarders ends in Keystone, Colo.
Cycling, Paris-Nice OLN 5 p.m. | Lance Armstrong makes his debut with his new Discovery Channel team. L.A. Marathon 10:30 a.m. | A live webcast of more than 25,000 runners clogging the downtown streets is available at NBC4.tv.
Match Makers: Agents Tennis Channel 7 p.m. | Meet Andy Roddick's agent, Ken Myerson. Then see Roddick hit The Tonight Show with Jay Leno on NBC at 11:35 p.m. Yankees at Red Sox NESN 7 p.m. | Not your average Grapefruit League affair.
On this date | In 1971, Joe Frazier defended his heavyweight title with a unanimous decision over Muhammad Ali--the Greatest's first loss in 32 pro bouts. Who's #1? Worst Teams ESPN Classic 8 p.m. | Amazingly, there are 18 worse than Rich Kotite's '96 1--15 Jets.
NCAA Skiing Championships | Last year New Mexico dominated the slopes in winning the school's first NCAA title in any sport. Led by returning All-Americas Martina Stursova and Lars Loeseth in the coed meet, the Lobos are out to repeat in Stowe, Vt.
PGA Honda Classic USA 4 p.m. | Sophomore Todd Hamilton defends his first Tour title at the Country Club at Mirasol in Palm Beach Gardens, Fla. ACC Tournament ESPN 7 p.m. | Three of the nation's top seven teams will be at the MCI Center in Washington, D.C.