UFC 152 takes place September 22 from Toronto. The bout is expected to be on the main card.
Hamill (10-4) retired from the UFC last year, but decided to return after taking a few months off. He is 9-4 inside the Octagon and a former member of The Ultimate Fighter.
Hollett (13-3) will be making his debut with the promotion.
Matyushenko (26-6) suffered a torn tendon in his Achilles.
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