The Sixers were clinging to a three-point lead with six minutes remaining in Game 5 of the Eastern Conference Quarterfinals against the Boston Celtics on Tuesday night. Down 3-1 in the series, they were fighting to save their season. Quentin Grimes rose to the occasion. He nailed a spot-up three and deflected Derrick White’s pass to Jaylen Brown on the ensuing possession. Brown ran to the opposite end of the court for the ball, but Grimes did not relent. Grimes stuck to Brown as he re-advanced to the Celtics’ side of the floor. Brown aimlessly probed, but Grimes did not allow him any breathing room, forcing Brown into his fifth straight missed attempt as the shot clock nearly expired. Sequence of the season for Quentin Grimes. pic.twitter.com/FC6jErbunf — Rob Perez (@WorldWideWob) April 29, 2026 Grimes’ contributions on both ends of the court were essential in the Sixers’ 113-97 win over Boston that forced a Game 6 on Tuesday night.…