Tyson Fury will step into the ring on Friday weighing less than his opponent for the first time in 15 years. The British heavyweight boxer faces Polish fighter Mariusz Wach in a scheduled bout. Fury, known for his fluctuating weight, tipped the scales at a lighter weight than Wach during the official weigh-in. This marks only the fourth time in his professional career that Fury has been the lighter man. 'I'm Mr Slim now,' Fury joked after the weigh-in. The fight is part of a card in London. Fury, who has held multiple world heavyweight titles, has been known for his speed and agility despite his size. His previous three fights where he weighed less than his opponent occurred early in his career, the last being in 2008. Wach, a former title challenger, has a record of 36 wins and 9 losses. Both fighters are expected to weigh around 250 pounds, with Fury coming in slightly under his opponent. The bout is scheduled for 10 rounds. Fans are eager to see if Fury's lighter frame will translate to a quicker performance. The fight will be broadcast live on BT Sport.