By Kyle Wood Bet on this four-leg, same-game parlay with +475 odds at SI Sportsbook for Game 4 of Warriors-Celtics in the NBA Finals. Jayson Tatum and Jaylen Brown finally both played well in the same game for the first time in the Finals. You can bank on that duo delivering again as part of SI Betting’s same-game parlay for Game 4. The Celtics and Warriors meet again Friday night at TD Garden. Boston holds a 2-1 advantage in the series and is a 3.5-point favorite in Game 4 and is now a heavy favorite to win the title. If the C’s are to take a 3-1 lead, it will be because of the play of Tatum …