It can only be Andy Murray who became the first Briton to win the American Open tennis championship since Fred Perry in 1936 by beating the formidable Novak Djokovic in five sets on Monday. For several years Murray has flattered to deceive like other British players before him but his Olympic victory over Roger Federer suggested that his Grand Slam moment might be approaching, and so it proved. The absence of Rafael Nadal may have eased Murray's task but in sport every opportunity has to be taken. Praise for Murray must be coupled with recognition of his coach and mentor Ivan Lendl.