HALLANDALE BEACH, Fla. – Trainer Shug McGaughey said surgery to repair Top Billing’s cracked cannon bone went off without a hitch Sunday in Kentucky, and the prognosis for his recovery is good. “Everything went perfectly,” McGaughey said. “He’ll likely stay up there and recuperate at WinStar. If all goes well, we can probably have him back in training in about four months.” Top Billing finished third in the Fountain of Youth after posting an impressive allowance win here. He was expected to be one of the favorites in the Grade 1 Florida Derby until being injured during a routine workout at Palm Meadows on Saturday. [Clocker Reports: Get Mike Welsch’s clocker reports from Gulfstream Park and Palm Meadows]