The Miami Heat will look to build off the momentum from its Game 4 victory when it takes on the San Antonio Spurs in Game 5 on Sunday night at the AT&T Center.

While the Spurs are very much in it, its current concern is the health status of Tony Parker, whose hamstring has been an issue. Nonetheless, San Antonio's Tim Duncan is focused on pulling out another win against LeBron James and the defending NBA champions.

"It is a must-win. We don't want to go back down there down a game with two games remaining at their house. Obviously, we lose this game, we're not giving up or anything, but we want to go back up with a chance to finish there. Huge pressure if we have to go back there and try to win two," Duncan told ESPN on Saturday.

The current predicament is nothing new for the Heat, who fell short in Game 5 against the Dallas Mavericks. However, Miami had also lost the previous game, and James wasn't playing up to his standards.

CLICK HERE to watch the Miami Heat take on the San Antonio Spurs via live stream. Coverage of Game 5 is set to begin at 8:00 p.m. EDT on Sunday, June 16.