Derrick White talks about the challenge of losing Jayson Tatum to injury and finding a way to win Game 5. (0:35)Open Extended ReactionsNEW YORK -- Celtics star Jayson Tatum won't be far from Madison Square Garden when Boston faces a must-win situation against the New York Knicks on Friday night as the defending champions attempt to force a deciding Game 7. He had what the team said was successful surgery on Tuesday and has been recuperating in New York. While playing for Tatum is a rallying cry for the team headed into Game 6, Celtics guard Payton Pritchard said seeing their "brother" was an emotional lift for everyone. If the Celtics win Friday night, Game 7 would be Monday night in Boston.