George Foreman continued his comeback attempt with a knockout of Mark Young at 2:57 of the seventh round Thursday night but former junior welterweight champion Aaron Pryor delayed his comeback, withdrawing before his bout on the card because of an eye injury.

Foreman, the former heavyweight champion of the world, stopped Young with a right-left combination to the head after stunning him several times in earlier rounds.Young, who lasted 50 seconds in the ring with Mike Tyson, gamely rose from the canvas and tried to continue but his trainer and the referee stepped between the fighters after it was apparent Young could not defend himself.

Foreman, winning his 15th fight with his 15th KO since returning to the ring after a 10-year absence, took several shots from Young but continued moving forward.