#5 Alexander Gustafsson
Admittedly, there’s no denying that Lesnar would have a huge size advantage in this hypothetical match-up. Swedish superstar Alexander Gustafsson has never fought at Heavyweight in the UFC before, and while he does have the frame of a decently-sized Heavyweight – he stands at 6’5” and has a long 79” reach – even if he were to bulk to ‘Ubereem’ portions he’d still be giving up some power to the gigantic Lesnar – who has to cut weight to make the 265lbs divisional limit.
But would that really matter? I don’t think it would. Gustafsson is simply one of the most dangerous fighters in the UFC right now, capable of finishing a fight from any position. He hits phenomenally hard, and has stunned or knocked down basically every opponent he’s faced in the Octagon – including Jon Jones and Daniel Cormier – and his wrestling has improved to the point where his takedown defense stands at a massively impressive 88%.
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What’s more, Gustafsson is perhaps the most ruthless finisher that the 205lbs division has seen since Chuck Liddell in his prime. If ‘The Mauler’ has his opponent hurt, 9 times out of 10 that opponent is about to be finished. Just ask Glover Teixeira, Jimi Manuwa or Matt Hamill about that. Shane Carwin infamously failed to finish Lesnar when he had him badly hurt back in 2010 – if they were to fight, Gustafsson certainly wouldn’t make that same mistake.