Hughie Fury faced an ugly cup to overtake Poland’s Mariusz Wach in a unanimous points victory at Wembley Arena.
British heavyweight Fury, 26, carried the fight to his rival but was badly cut around his left eye during a head-to-head clash at the start of the 10-round contest.
His father and trainer Peter Fury’s instruction to box rather than fight saw him alter his approach and minimize the risk of further damage to the cut.
And the judges gave him a wide decision 100-90 100-90 99-91 on the cards.
Fury – cousin of WBC heavyweight world champion Tyson Fury – suffered a serious left eye injury against Bulgaria’s Kubrat Pulev in 2018.
Wach’s head damage was checked by the ring medic, but Fury was able to balance and cash smart throughout to secure his 25th victory in 28 fights.
Lawrence district knocked out Nikodem Jezewski three times in less than two rounds as he headed for victory in their heavyweight contest.
A bullet to the body and a hard right hand at the temple put Pole Jezewski inside twice in the first round.
The Rio 2016 Olympian has been precise and harsh throughout against a man who took the fight at the last minute after Okolie’s world title fight with Krzysztof Glowacki was called off when the Polish fighter contracted Covid -19.
Jezewski pushed his way from his stool in the second round, but a straight line across his forehead ended the contest and moved Okolie to 15 wins in 15 fights.