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Jairzinho Rozenstruik has a grand sense of timing.
The undefeated Surinamese heavyweight knocked out former Strikeforce champion Alistair Overeem with a sweeping right hook in the fifth round of their UFC on ESPN 7 headliner on Saturday at Capitol One Arena in Washington, D.C. A late-notice substitution for Will Harris, Rozenstruik (10-0, 4-0 UFC) brought it to a close 4:56 into Round 5.