Grigor Dimitrov’s career has been littered with disappointments at the Grand Slams and after retiring from his U.S Open quarter-final against Frances Tiafoe on Tuesday, the Bulgarian said the setbacks do not get any easier to deal with.
Playing much of his career in a period dominated by the 'Big Three' of Roger Federer, Rafa Nadal and Novak Djokovic, success has been hard to come by for Dimitrov…