LONDON – Lennox Lewis became the first world heavy- weight cham-pion to retire from boxing since Rocky Marciano in 1956 when he announced he was hanging up his gloves here Friday. EXPLOSIVE import Lenny Cooke of Purefoods TJ Hotdogs, former Washington University star Mark Sanford of Coca Cola Ti- gers, along with sensational rook- ies and veteran players will try to blend their game in a pre-season tune-up match today at the Cebu Coliseum at 5:30 p.m.