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Takedowns will almost certainly decide this matchup.
Dong Hyun Kim and John Hathaway have competed in a combined 19 UFC bouts, scoring takedowns in 16 of those appearances.
While Hathaway's wrestling has looked good inside the Octagon, he hasn't faced the top competition that Kim has. Even against lesser competition, Hathaway has shown more flaws with his takedowns than the Korean.
In a bout with Kris McCray, Hathaway shot in on a single leg. As he looked to run the pipe, the Englishman failed to keep his foe's left leg pinched between his own legs. Also forgetting to keep his left arm tight to his body, he allowed McCray to secure a right underhook before going to the ground.
With his left leg free, McCray kept space between him and Hathaway by placing his left shin on the British fighter's hip. Since he also had an underhook, McCray was able to use Hathaway's momentum against him and wound up on top.
On a single leg from the other side against a more highly ranked opponent, Siyar Bahadurzada, Kim finished flawlessly. Whereas Hathaway was unable to trap his adversary's lifted leg or prevent being underhooked, Kim did both before completing his takedown at UFC on Fuel TV 8.
During his UFC career, Kim has only been outwrestled in a short outing against Demian Maia. Hathaway, on the other hand, was taken down five times in a bout with Mike Pyle at UFC 120 and on three occasions during his matchup with McCray.
A better wrestler than both those fighters, Kim shouldn't have much trouble winning the takedown battle on Saturday.