An undefeated boxer Musa Yamak died in the middle of a fight Saturday of a heart attack

• Musa Yamak collapsed before the third round of a boxing match Saturday.
• Medics rushed into the ring but could not revive the fighter.

An undefeated boxer Musa Yamak collapsed in the ring during a boxing match Saturday.

The 38-year-old German fighter made his debut in 2017, fought mostly in Germany but also Turkey, and had finished every opponent he had faced until his May 14 light heavyweight bout against Hamza Wandera.

Yamak absorbed Wandera's heavy shots in the second round that appeared to affect him going forward at the Garching boxing event, near Munich.

Video footage, which Insider has seen but has decided not to publish, shows Yamak dropping to the floor before the third round could begin. He then appeared to be non-responsive.

Medics rushed into the ring but could not revive the 175-pound fighter. He was taken to hospital but pronounced dead, the New York Post reported this week.

"We lost our compatriot Musa Askan Yamak, a boxer from Alucra, who won European and Asian championships, at a young age after a heart attack," Istanbul politician Hasan Turan, 55, tweeted at the weekend.

"I wish God's mercy on the deceased, whom we met at the Grand National Assembly of Turkey when he came to Ankara for the competition, and my condolences to his sad family and fans."