ANDY MURRAY is through to the quarter-finals of the US Open after a 7-5, 7-5, 6-4 win over Jo-Wilfried Tsonga at Flushing Meadows.

The Scot will meet world No.1 and top seed Novak Djokovic in the last eight after the Serb beat Germany's Philipp Kohlschreiber 6-1, 7-5, 6-4.