Heavyweight contender Vyacheslav Glazkov remained unbeaten with a competitive 12-round decision over former cruiserweight titleholder Steve Cunningham on the undercard of the Sergey Kovalev-Jean Pascal on Saturday in Montreal.

Glazkov (20-0, 12 knockouts), who is rated No. 7 by THE RING, won by scores of 116-112 (twice) and 115-113. The 30-year-old Ukrainian boxer was outhustled by Cunningham (29-6, 13 knockouts), a 38-year-old veteran from Philadelphia, but he appeared to land the heavier shots during the fight, especially down the stretch.

The HBO-televised bout was the third questionable decision that Glazkov has benefitted from. Many observers thought he lost his draw to Malik Scott in 2013 and his decision over Derric Rossy last year.