What: 55th Masters championship, today through Sunday.

Site: Augusta National Golf Club.

Yardage: 6,905.

Par: 36-3672.

Format: 72 holes (18 daily) stroke play.

Playoff (if necessary): Sudden death.

Probable starting field: 88 -- 66 American pros, 3 American amateurs, 17 foreign pros, 2 foreign amateurs.

Defending champion: Nick Faldo.

Former champions in field: Tommy Aaron, George Archer, Seve Ballesteros, Gay Brewer, Billy Casper, Charles Coody, Ben Crenshaw, Nick Faldo, Ray Floyd, Bernhard Langer, Sandy Lyle, Larry Mize, Jack Nicklaus, Arnold Palmer, Gary Player, Craig Stadler, Tom Watson, Fuzzy Zoeller.

TV: USA Network: today-tomorrow, 4-6 and 9-11 p.m. CBS: today-tomorrow, 11:30-11:45 p.m.; Saturday 3:30-6 p.m.; Sunday 4-7 p.m.