There were big concerns on whether or not Kell Brook was capable of making the welterweight limit of 147-pounds.
Those fears were washed away on Friday, when it was revealed that Brook (36-1, 25 KOs) weighed 153-pounds - with 21 days to go before his official weigh-in for the mandatory defense against undefeated Olympian Errol Spence (21-0, 18 KOs).
Brook's promoter Eddie Hearn of Matchroom, posted footage of Brook's weight being checked by the British Boxing Board of Control. The fight with Spence takes place on May 27th at Sheffield United's Bramall Lane.
Last September, Brook moved up by two full weight divisions to challenge IBF, IBO, WBC, WBA middleweight champion Gennady Golovkin at the O2 Arena in London. Brook started well, but eventually suffered a fractured orbital bone and was stopped in the fifth round of the fight.
During all of the WBC's mandated weight checks leading up to the fight - Brook was alarmingly heavier than Golovkin.
After overcoming his rehabilitation for the orbital bone injury, Brook then began training - but nobody knew where he would return.
Brook's handlers, including Hearn, were pleading with him to forget the welterweight division and instead place his focus on campaigning at the junior middleweight limit of 154. But one of the biggest issues with the junior middleweight division was the lack of credible names to fight.
Brook refused to vacate the title that he captured in 2014 when he traveled over to America to win a close points decision over Shawn Porter in Los Angeles, California. After beating Porter, Brook retained the title with knockout wins over Kevin Bizier, Jo Jo Dan and Frankie Gavin.
Spence, who is coming off knockout wins over former world champion Chris Algieri and Italian Olympian Leonard Bundu, will be Brook's toughest opponent, at welterweight, since Porter. At the same time, Brook will also be Spence's toughest opponent to date.