Murat Gassiev vs. Krzysztof Włodarczyk was a professional boxing match contested on October 21, 2017, for the IBF cruiserweight championship.

[1] At the WBSS Draft Gala, which took place on 8 July in Monte Carlo, although Gassiev was second-seeded, meaning he could pick whom he wanted to fight, his choice was pre-determined to be former IBF and WBC cruiserweight champion Krzysztof Włodarczyk by the IBF, in a mandatory fight.

[2][3] It was announced on 8 September that the fight would take place in Newark, New Jersey, at the Prudential Center on 21 October 2017.

One of the main factors for the fight taking place in New Jersey was the Polish population in that state.

Midway through round 3, having Włodarczyk against the ropes, Gassiev connected with a left uppercut to the head, which was immediately followed by a left to the body, dropping Włodarczyk on all fours, flat on the canvas.