Novak Djokovic and Taylor Fritz have advanced to a semifinal matchup at the Shanghai Masters.

Dan Evans has won the longest match at the U.S. Open since tiebreakers were introduced in 1970, beating Karen Khachanov 6-7 (6), 7-6 (2), 7-6 (4), 4-6, 6-4 in 5 hours, 35 minutes.