The 31 year-old was attempting to make the weight for the first time in fourteen months having moved up to middleweight for a failed September challenge against Gennady Golovkin.
Despite the uncertainty, Brook came in with ounces to spare for his clash with Errol Spence Jr. and seemed happier than usual when chatting to the media in attendance.
Below, WBN looks back at the shape Brook was in for his last three weigh-ins against Spence, Golovkin and Kevin Bizier.
March 2016 vs Kevin Bizier (Credit: Lawrence Lustig)
September 2016 vs Gennady Golovkin (Credit: Lawrence Lustig)
May 2017 vs Errol Spence Jr.
The difference in definition is considerable for Brook, who will blow up now he’s rehydrated but can expect to have far more speed after shedding the excess weight from Golovkin.
Making 147 and being so strict can also have an effect on Brook’s mindset and could make the Yorkshireman that much meaner come fight time.
SHOWTIME CHAMPIONSHIP BOXING® Live At 5:15 p.m. ET/2:15 p.m. PT
Kell Brook vs. Errol Spence Jr. – IBF Welterweight World Championship
Kell Brook – 146 ½ pounds
Errol Spence Jr. – 146 ¼ pounds
Live at approximately 4:30 p.m. ET/1:30 p.m. PT exclusively in the U.S. on the SHOWTIME Sports Facebook page and the SHOWTIME Sports YouTube channel.
George Groves vs. Fedor Chudinov – vacant WBA Super Middleweight World Championship
George Groves – 167 ¼
Fedor Chudinov – 167