US Open title contender and former semi-finalist crashes out in second-round shock

Felix Auger-Aliassime became the highest-ranked seed to fall at the US Open so far as he was knocked out in the second round in four sets.Last year’s semi-finalist had been among those tipped for a strong run in New York in a wide-open men’s field, but he failed to capitalise on his opportunity as he was ousted 6-7(5) 6-3 6-2 6-2 by Karen Khachanov on Thursday. World No 50 Khachanov, who lost the opening match in his three US Open tune-up events, was far from spectacular but did enou