US Open champion Lucas Glover holed two monster putts on the way to a two-stroke lead in Tuesday's opening round of the end-of-season PGA Grand Slam of Golf in Bermuda. The long-hitting American drained a 60-footer to birdie the fourth and rammed in a 30-footer to eagle the par-five 17th in breezy conditions at Port Royal Golf Course. Helped by his red-hot putting display, Glover fired a six-under-par 65 to take control of the 36-hole stroke-play event which brings together the winners of the year's four majors. “I played well,” the 29-year-old told reporters. “I didn't know what to expect. I didn't exactly burn up the driving range last week but I'm very pleased. I knocked in a bunch of putts. “I didn't hole much at the Presidents Cup so I was pretty excited to see some go in,” Glover added, referring to the Ryder Cup-style team competition won by the United States against the Internationals in San Francisco this month. Fellow American and British Open champion Stewart Cink opened with a 67 at Port Royal while Masters winner Angel Cabrera of Argentina carded a 70. South Korean Yang Yong-eun, who overhauled Tiger Woods to clinch the PGA Championship at Hazeltine National, returned a level 71. Glover, who held off thrilling late charges by compatriots Phil Mickelson and David Duval to win his first major title at the US Open in June, said his strategy would remain unchanged for Wednesday's second round.