By Zhang Rui

Former undisputed heavyweight champion Mike Tyson broke a finger while filming the upcoming martial arts blockbuster "Ip Man 3" with Chinese kung fu star Donnie Yen.

The two were performing a fight scene on set in Shanghai when Yen's elbow hit one of Tyson's fingers, injuring it. Tyson insisted on finishing filming the scene before having his injury checked by a doctor.

Tyson was then taken to a local hospital where it was determined that his finger had been broken.

"Tyson is very professional. I knew I hit him, but I didn't know it was that serious. So we moved on and continued shooting the film at that time. I feel so sorry now," Yen said, adding, "He is a very professional, very nice actor with a great work ethic. We have really enjoyed this collaboration."

Tyson jokingly complained to reporters who came to the hospital to see him. "At first you guys were only worried about Yen's safety, as if he would get hurt. Now I'm hurt, no one comforts me," he said.

Tyson became a fan of Yen when he saw the film "Ip Man" six years ago, so when Yen asked him to join the third installment of the franchise, Tyson agreed immediately.

Tyson joins Yen in the film along with a computer-generated Bruce Lee in the latest installment of the kungfu biopic series about the life of Bruce Lee's teacher and Wing Chun Boxing master, Ip Man. The story in the third installment focuses on the master-student relationship between Ip Man and Bruce Lee.

"Ip Man 3" is scheduled to be released in the Spring of 2016.