There is one thing in golf that is miles bigger than a major championship or the rare double-eagle. It has only been done three times in the history of golf, with the last time coming in 1999. It's the sub-60 round.On Thursday, at the Travelers Championship, 48-year-old Kenny Perry had the rare opportunity to match that feat, and shoot a sub-60 round for only the fourth time on the PGA Tour, and the first time on a par-70 golf course. Standing over a 24-foot eagle putt on the par-4 15th hole, Perry was 8-under and looking to move to 10-under, just a shot off the mark with three holes to play.
