Oleksandr Usyk delivered a stylish and measured display to pick apart Derek Chisora in a points win that underlined his credentials at heavyweight.

The former unified world cruiserweight champion moved with grace and picked punches beautifully to frustrate his British rival over 12 rounds.

An attack in the seventh sent Chisora staggering to the ropes as Usyk found ways to land while on the move.

Chisora worked hard but had no reply and lost 117-112 115-113 115-113.

In the immediate aftermath, Chisora said he felt he had done enough to beat the Ukrainian but the BBC 5 Live Boxing team at ringside at Wembley Arena felt Usyk comfortably merited the judges' decision.

Fans were unable to attend a heavyweight bout that was highly anticipated for the clash of styles on offer but WBA, WBO and IBF world heavyweight champion Anthony Joshua was among those watching from ringside.

With this win, Usyk, 33, remains mandatory challenger for Briton Joshua's WBO belt and, while he may not have found the eye-catching knockout win fans so often long for at heavyweight, his skill set is obvious.

The craft, quick feet and general intelligence that saw him dominate at cruiserweight was on display and while Chisora, 36, always looked to walk forward and engage, the movement from his rival ultimately dictated large spells of the fight.

Chisora brought the pressure and rugged style he had promised early on when he enjoyed his best period and Usyk - in just his second fight since stepping up to heavyweight - staggered after taking a shot in the opening 30 seconds.

Chisora looked to tire his opponent by working the body, while Usyk's approach was to test his rival's stamina with constant movement. By the end of the seventh, a combination looked to have Chisora in trouble just as the bell ended the round.

Usyk landed a clean left hook in the eighth and, with BBC 5 Live pundit Dillian Whyte questioning the guidance Chisora was receiving in his corner, the Briton was unable to dig out the kind of thrilling fightback that has endeared him to fans in recent years.

While Usyk only gave himself "three out of 10" for the display, he will undoubtedly prove a tricky puzzle to solve in his new weight division.