Rory McIlroy's pursuit of a calendar Grand Slam is facing an unexpected hurdle: a persistent foot injury. The golf legend, who has dominated the Masters with back-to-back wins, is now struggling with a blister on his right pinky toe. This injury has forced him to cut short his practice at the PGA Championship, leaving after just three holes. What makes this situation particularly intriguing is the potential impact on his quest for a historic Grand Slam. If McIlroy were to win the PGA Championship, he would become the most successful European golfer in major championship history, surpassing Nick Faldo's record. However, the injury raises questions about his ability to perform at his best. In my opinion, this is