Deontay Wilder and Derek Chisora collide in both men’s 50th, and potentially final, professional fight on Saturday night.Chisora has already confirmed that his next bout will be his last, while ‘The Bronze Bomber’ may be forced into the same predicament if he loses.GETTYWilder and Chisora are desperate for victory[/caption]While Wilder returned to winning ways against the unheralded Tyrrell Herndon in June, the level of opposition and performance left a lot to be desired.The American has lost four of his six fights, and at 40 years old, his best days are firmly behind him.Chisora is three years older than Wilder but has been in a better run of form.The rugged veteran is currently riding a three-fight winning streak over Gerald Washington, Joe Joyce and Otto Wallin.Wilder vs Chisora: How to watchThe 12-round heavyweight is set to take place on Saturday, April 4.It is being held at London’s O2 Arena.Ringwalks for the main event are scheduled for 10pm UK time, with the action expected to get underway at around 10:30pm.talkSPORT will have live commentary from the English capital.Coverage starts at 7pm on talkSPORT 2 before moving to talkSPORT at 10pm. John Rawling and Spencer Oliver join Adam Catterall and Gareth A Davies on the commentary desk.Deontay Wilder returns to the ring against Tyrrell Herndon on June 28Mark Robinson/MatchroomTune in to talkSPORT through the website via the live stream or find us on DAB digital radio through your smart speaker and on 1089 or 1053 AM.You can also download and listen to all our live commentaries via the talkSPORT app.The fight is also being shown live on DAZN PPV.Fans can buy the event as a one-off pay-per-view at £24.99 or purchase a DAZN Ultimate membership for £22.99 a month, which includes all the PPVs under one subscription.Wilder vs Chisora: UndercardMain event: Deontay Wilder vs Derek ChisoraViddal Riley vs Mateusz Masternak – European cruiserweight title Denzel Bentley vs Endry Saavedra – for WBO interim middleweight titleAshton Sylve vs Raul Antonio Galaviz HernandezMatty Harris vs Franklin IgnatiusAmir Anderson vs Jordan DujonJermaine Dhliwayo vs Jake MorganDan Toward vs Misael Da VeigaTom Welland vs Yahir Alexander Solorio MoralesBoxing scheduleFor all the upcoming fights and results this year, check out talkSPORT.com’s boxing schedule.