It's a bitter chill for Khamzat Chimiev, as he struggles through a Boot Camp at minus 10C and struggles to find a fight with anyone.
The unbeaten star launched UFC's welterweight champion assault with a brutal training regimen in the Swedish wilds.
The Chechen-born Swede KhamzatChimaev is now world No11, but it's proving difficult to convince his rivals to take him on.
The fierce devotion of the sub-zero hero was a reason why his rivals kept him out.
UFC boss Dana White empathises even with 170lb opponents who stay away from Chimaev.
White said to TMZ, "Listen man. Khamzat is an open murderer.
"He's a killer and a savage, so I don't blame anyone for not wanting fight Khamzat Chimaev."
Chimaev uploaded a video to Instagram of him running and shadow-boxing in snowy woods together with Reza Madadi, his Russian training partner.
Despite their exhausting antics around the Allstars Training Centre, they were both dressed in extreme-winter clothes.
Madadi says into the camera, "It's very cold, Russian cold."
"Brother, we can do it! We all have the same goal. You have to work hard to achieve it."
Free Bets: Get more than PS2,000 in NEW CUSTOMER DEALSMadadi said that the pair were running three kilometres FIVE TIMES, with breaks for their exercise routines.
Chimaev is eager to improve on his 4-0 record.
Two years after bursting onto Fight Island's scene, he climbed into the top 15 by securing a shutout victory over Li Jingliang, a Chinese striker.
However, American superstar Nate Diaz (36) is one of those who have managed to beat world No11 Chimaev.
White believes that White's belief is because Diaz claimed that he didn't want to deal with such a "rookie" and that Californian wants to remain safe.
