SEATTLE (AP) - Rory MacDonald took apart B.J. Penn in a decisive unanimous decision during Saturday's Ultimate Fighting Championship card.
MacDonald (14-1) caught Penn (16-9-2) with a kick midway into the second round of the welterweight bout that nearly doubled the former lightweight and welterweight champion from the Big Island over in pain. Penn, who had not been in the octagon in 13 months, was protecting his ribs the rest of the fight.
MacDonald won 30-26 on two cards and 30-27 on the other.
Rory MacDonald lands a kick against B.J. Penn in the third round on the way to winning their bout Saturday.
"With all the things we said to each other hyping the fight I just want to say that it has been a huge honor fighting B.J.," MacDonald said. "I'm happy with my performance and the new techniques I used successfully out there."
Penn has won just one of his last six fights.
In the main event, Benson Henderson retained the lightweight belt by unanimously outpointing Nate Diaz 50-43, 50-45 and 50-45.
Henderson improved to 6-0 with the UFC and 18-2 in his mixed martial arts career. Diaz fell to 16-8.
In the light heavyweight division, Alexander Gustafsson won a unanimous decision over former champion Shogun Rua, likely earning a shot at the title next year.