Giannis Antetokounmpo says his game-winning block was all about trusting his instincts as the Milwaukee Bucks claimed an important 118-116 victory over the Philadelphia 76ers.

The reigning NBA Finals MVP made a crucial block to deny Joel Embiid a lay-up to tie the game up with under two seconds left on the clock after James Harden's three-point attempt rimmed out.

Antetokounmpo had already scored 40 points with 14 rebounds and six assists, with his third block proving a decisive intervention.

"Just let my instincts play," Antetokounmpo told reporters. "The ball went to Embiid and I just tried to jump as high as I can and try to make a play.

"I knew it was going to be a quick one. I felt it. When you get in that position and you're down one, with the clock running, you get it and go quick. I tried to time it.

"It worked out, sometimes it doesn’t work out. This time it worked out in our favour."

The play was reviewed after it was initially seen as a goal tend which was cleared, forcing a jump ball which allowed the clock to wind down.

Embiid said: "I thought it was close. I probably should’ve gone up harder. In that situation I didn’t know how much time was left.

"I was just trying to get the ball off quickly. I thought it was close. I didn’t know if it was a goal tend or not."

Bucks head coach Mike Budenholzer said it was "just a special block", while 76ers counterpart Doc Rivers labelled it "spectacular".

The result means the Bucks move into second spot in the Eastern Conference with a 47-28 record, behind the Miami Heat (48-28), with the Boston Celtics (47-29) in third and the 76ers (46-29) in fourth.

The 76ers have suffered successive losses to last season's NBA Finalists, the Bucks and the Phoenix Suns, in a wake-up call to their title credentials.

"We've got to do a better job," Embiid said. "Against Phoenix we were right there. Tonight we had a lead, just like against Phoenix.

"It's a game of runs. Every team is going to make their runs. We just need to stay calm and know what we need to do. Last game showed why those two teams went to the finals."