Rory McIlroy’s quest for a seventh major title began in shaky fashion with an opening bogey at the US PGA Championship. The Northern Irishman, who shook off pre-tournament toe troubles, is bidding to become the fifth man since 1960 to win the first two majors of the year after clinching a second successive Masters title last month. He started that bid from the 10th hole in an eye-catching group alongside two-time major champion Jon Rahm and Jordan Spieth – chasing a win this week which would seal a career grand slam. McIlroy said he felt Aronimink, which has had a number of trees removed, was a “bash driver down and then work it out” course. But his opening drive was wayward down the right, taking a fortunate bounce to the rough on the edge of the fairway and he was only able to hack the ball just over 100 yards towards the hole. His approach left a 14ft putt for par, which missed to the left.…