Frances Tiafoe stages epic comeback to defeat Alex Michelsen and enter semis

Frances Tiafoe delivered an unforgettable performance at the US Open, staging a heroic comeback from two sets down to defeat Alex Michelsen and advance to the semi-finals.IMAGE: Frances Tiafoe celebrates winning the fifth set tie-breaker in the US Open quarter-final against fellow-American Alex Michelsen at Flushing Meadows, New York, on Tuesday. Photograph: Robert Deutsch/IMAGN IMAGES/ReutersKey PointsFrances Tiafoe staged a remarkable comeback after being two sets and a break down.He defeated US compatriot Alex Michelsen in a five-set thriller at the US Open.The match lasted four hours and 38 minutes.Tiafoe secured his third semi-final appearance at the US Open with this victory.He will face either Ben Shelton or Carlos Alcaraz in the next round.IMAGE: Frances Tiafoe embraces Alex Michelsen at the net after the four-hour and 38-minute contest.