Desperate duel between Tomasz Adamek, Eddie Chambers in New Jersey

The best fights in boxing are born out of desperation, and on Saturday night in Newark there is one that will wreak of it. Tomasz Adamek (45-2), last seen on the big stage getting beat up by WBC heavyweight titleholder Vitali Klitschko in 2011, against Eddie Chambers (36-2), last seen being knocked out by unified titleholder Wladimir Klitschko in 2010, for the right to stay in play as an opponent for one of the brothers (9 p.m., NBC Sports Network).

Chambers, 30, has struggled since his loss to Wladimir Klitschko. He was inactive for nearly a year, returning in February 2011 to outpoint journeyman Derric Rossy. Chambers was scheduled to face Tony Thompson in an IBF title eliminator last October, but was forced to pull out with a back injury. He pulled out of another fight, this time with Sergei Liakhovich, in January, citing a rib injury.

Chambers says the key to beating Adamek is to break him mentally.

“Adamek sometimes has a problem with his body movement,” Chambers said. “He can be hit but he can also pepper you with great, surprising punch combinations. But his biggest strengths is his mental strength. He has unbelievable determination. He’s a warrior who never quits. But [when] he was broken by Vitali Klitschko, he could do nothing."

Adamek, 35, rebounded quickly from his loss to Klitschko, outpointing Nagy Aguilera in March. Adamek has contended that weight issues robbed him of his movement against Klitschko and hopes that a few wins will put him on a path to fight Wladimir early next year.

As for Chambers, Adamek scoffs at Chambers’s assertion that he has figured out how to beat him.