RIYADH, Saudi Arabia (AFP) — Tyson Fury weighed in at the heaviest of his career on Friday as he vowed to go to war with Oleksandr Usyk in their world title rematch.

The Englishman, albeit fully clothed, tipped the scales at 281 pounds — 19-lb heavier than when he lost to the Ukrainian in their unification bout in May.

Usyk, also dressed against the winter chill at Riyadh’s Wonder Garden amusement park, weighed 226-lb, 2.5-lb heavier than seven months ago.

Fury’s added weight shows he’s out to physically dominate the smaller Usyk on Saturday. He offered only one word — war — to the interviewer as he left the stage.

“When a 20 stone (280lb) man hits you on the jaw, compared to a man at 17 stone, it’s a bit different,” Fury told Sky Sports earlier.

The 36-year-old “Gypsy King” desperately needs the win to erase his sole career defeat at the hands of the mobile, elusive Usyk in Riyadh in May.

The first unification bout of the four-belt era was decided by a narrow split-decision, although Fury was saved by the bell after a standing eight count in the ninth round.

Only three belts — International Boxing Organization (IBF), World Boxing Confederation and World Boxing Organization — are up for grabs after Usyk vacated the IBF title to focus on the rematch, instead of facing mandatory challenger Daniel Dubois.

The Ukrainian has already amassed one of the great boxing careers after winning Olympic gold and becoming undisputed cruiserweight champion before stepping up to heavyweight.

A low-key build-up ignited on Thursday when the two fighters faced off for a marathon 11 minutes at their press conference, despite attempts to separate them.

On Friday, they faced each other for just a few seconds before parting.

Usyk, 37, comes in undefeated at 22-0 with 14 knock-outs, while 6-foot-9 Fury, the taller man by six inches, is 34-1-1 with 24 KOs.

Victory for Usyk — briefly a soldier after the Russian invasion — would be a fillip for his embattled country after nearly three years of war with its giant neighbor.

Saturday’s fight is just the latest high-profile sports event bankrolled by oil money in Saudi Arabia, confirmed this month as host of the 2034 football World Cup.

Formula One, LIV Golf, top tennis and a parade of senior football stars are among the recent acquisitions as the world’s top oil exporter tries to diversify its crude-reliant economy and update its ultra-conservative image.

Earlier, according to reports, there was good news for Fury when the pre-fight rules meeting decided he would not have to shave off his bushy beard, despite concerns from Usyk’s team that it could cushion punches.

“He has a beard and there’s been a lot of fighters over the years who’ve fought with beards, and that’s it,” promoter Frank Warren told Sky Sports.