Paulo Costa suffered a serious hand injury in his UFC 278 victory over Luke Rockhold, requiring him to go under the knife. Costa (14-2 MMA, 6-2 UFC) snapped a two-fight skid earlier this month when he earned a unanimous decision victory over Rockhold to send the former UFC and Strikeforce champion into retirement. The Brazilian won every round on all three scorecards, and afterward said he was keen to make a quick turnaround.
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Paulo Costa undergoes surgery on broken hand, delaying timeline for next UFC fight – MMA Junkie