Lewis’ abrupt exit comes just minutes before the start of the show’s preliminary bouts.
It is unknown if either fighter will be paid their show money.
The UFC has yet to issue an official statement regarding Lewis’ health. It has not been reported which prelim fight will now get bumped to the main card in place of Lewis vs. Werdum.
The good news is that a pair of title tilts will still headline the gig. Bitter rivals Tony Ferguson and Kevin Lee vie for the vacant interim lightweight belt in the main event. Flyweight king Demetrious Johnson looks to make a UFC record 11 straight title defenses when he meets Ray Borg in the co-featured attraction.