Butler, Williamson injuries.

When injuries affect the Miami Heat, coach Erik Spoelstra almost always delivers the same three-word outlook.

“We have enough,” he says.

That theory is about to be tested — and will be a theme in the NBA’s win-or-go-home finales of the play-in tournament on Friday night.

All four teams — Miami and Chicago in the Eastern Conference, New Orleans and Sacramento in the Western Conference — have serious injury concerns going into their matchups to decide the No. 8 seeds on the playoff bracket. Miami and New Orleans have home-court edges Friday; the winners will face No. 1 Boston and No. 1 Oklahoma City in Round 1, starting Sunday.

The Heat are bracing to be without Jimmy Butler, Terry Rozier and possibly Duncan Robinson for their game against the Bulls, who had guard Alex Caruso go down to a sprained ankle in Wednesday’s win over Atlanta.

The Pelicans will be without Zion Williamson because of a hamstring injury in their game against the Kings, a team that’s been without would-be starters Kevin Huerter and Malik Monk in recent weeks because of injuries.

“We will do this the hard way,” Spoelstra said. “That has to be the path right now. We’re going to rest up, treat up, rally around each other up and get ready for Friday and again, embrace these competitive games. It’ll be competitive in front of our home fans and we’re going to bring a hell of a game on Friday night lights and do this the hard way. That’s just the way the deal is right now.”