His biggest victory to date was against American MMA fighter Kyacey Uscola via submission (triangle choke) in first round.
In August 2012, it was announced that Tsarev would make his U.S. debut for Bellator Fighting Championships.
He lost via controversial TKO in the second round as Tsarev said he had been poked in the right eye, but referee Greg Franklin did not acknowledge it.
[4] Tsarev faced Douglas Lima in welterweight tournament on January 24, 2013 at Bellator 86 on Spike TV.
[6] However, Tsarev pulled out of the fight in late-February citing an injury and was replaced by Norway's Mohsen Bahari.