Rory McIlroy has been warned his 'mental block' at Augusta National could well stop him from ever completing the career Grand Slam by his former agent Andrew 'Chubby' Chandler.
McIlroy has enjoyed a remarkable career out on the golf course so far, having won 23 PGA Tour titles, 15 DP World Tour crowns and four major championships. The Northern Irishman won all four of his majors within the space of just three years between 2011 and 2014.
Since then though the 33-year-old has endured a nine-year drought at professional golf's flagship tournaments, especially when competing at the iconic Augusta National.
