Sean Strickland has now produced two of the greatest upsets in UFC history. On Saturday, in the main event of UFC 328, the controversial American secured an unlikely decision win over Khamzat Chimaev , regaining the middleweight title as he became the first fighter to beat the Russian. After five rounds in Newark, New Jersey, every scorecard read 48-47, with two favouring Strickland and one going Chimaev’s way. Khamzat Chimaev (right) was beaten for the first time, as Sean Strickland won via decision (Getty) The narrative heading into the bout was that Chimaev would employ his typically-dominant wrestling to breeze past his former training partner , an awkward striker with whom he had produced a volatile build-up – even kicking Strickland at the press conference , after they had traded vulgar verbal barbs. And when the Russian secured a takedown inside 15 seconds of round one, it seemed these predictions would be vindicated.…