No 11 seed rallies for 5-7, 3-6, 7-5, 6-3, 7-6 (6) winTiafoe into third US Open semi-final in five yearsAmerican will play Alcaraz or Shelton in last fourAt the end of more than four and a half hours of escalating drama inside the world’s biggest tennis stadium, a devastated Alex Michelsen fell in to Frances Tiafoe’s arms just outside the tramlines, sobbing uncontrollably. Tiafoe took his younger countryman in an embrace and held him there for 23 seconds, the victor consoling the vanquished in the aftermath of an extraordinary comeback that had carried him, somehow, into the US Open semi-finals.Only a couple of hours earlier, the 28-year-old Tiafoe had been two sets down and two points from elimination in the third set, with Michelsen within touching distance of the biggest victory of his young career. Instead, Tiafoe roared back from the brink to win a quarter-final that will be long remembered in New York, outlasting Michelsen 5-7, 3-6, 7-5, 6-3, 7-6 (6) on Tuesday afternoon to reach the last four at Flushing Meadows for the third time in five years. Now he will face either Carlos Alcaraz or Ben Shelton on Friday for a place in his first grand slam final. Continue reading... ...read more read less