Having kept their Eastern Conference first-round series with the Indiana Pacers alive with Tuesday's Game 5 win, the Milwaukee Bucks could recover their two leading scorers for Game 6.

Despite star duo Giannis Antetokounmpo and Damian Lillard missing out due to injury, the third-seeded Bucks dragged the series back to 3-2 with a 115-92 victory at Fiserv Forum.

Khris Middleton had 29 points and 12 rebounds – his third straight game with at least 25 points – while Bobby Portis Jr. also had 29 as he made amends for being ejected in Milwaukee's Game 4 defeat.

That meant they became the first team in NBA history to win a playoff game when deprived of their two top scorers from the regular season.

The Bucks will go back on the road for another must-win game on Thursday, and they are hoping to have reinforcements.

Two-time NBA MVP Antetokounmpo has missed all five games in the series with a left calf strain, while Lillard has missed the last two contests after hurting his Achilles last week.

After Tuesday's game, coach Doc Rivers said both players were scheduled to work out on Wednesday and suggested they could be in contention for Game 6.

"I think they're very, very, very close," Rivers said.

Rivers was delighted by the way their team-mates stepped up in difficult circumstances, adding: "You could feel the energy in our film and in our walk-through.

"We were coming to play and win tonight. You could feel it in the preparation, that was not a team walking through a walk-through, thinking this was it. That's a team thinking they can win."

For Middleton, it was simply about staying alive and giving the Bucks' stars a chance to impact the series.

"We have to find a way to win, whatever it takes," Middleton said. "We're still confident. Our backs were up against the wall tonight, we had a great home crowd that got us going. 

"So we're going to have to find a way. That's the only way to put it, find a way to get this next one and force a Game 7."