MUNICH — Former champion Philipp Kohlschreiber upset second-seeded Karen Khachanov 7-6 (6), 6-4 Thursday to reach the quarterfinals of the Munich Open.
Kohlschreiber, who won the tournament in 2007, 2012 and 2016, had to save a set point in the tiebreaker then earned the decisive break for a 5-4 lead in the second before serving out the match. The loss extended a recent slump for Khachanov, who has not won a single set since the Indian Wells tournament in March. He also lost his opening matches at Miami, Monte Carlo and Barcelona since then.
Kohlschreiber will next face Matteo Berrettini of Italy, who beat unseeded American Denis Kudla 7-5, 6-3. Kudla, who is ranked 82nd, had upset the fifth-seeded Kyle Edmund on Tuesday.
Also Thursday, the fourth-seeded Roberto Bautista Agut defeated German wild card Rudolf Molleker 6-4, 6-2 to set up a meeting with Guido Pella, who ousted Taro Daniel of Japan 6-1, 6-7 (7), 6-3.
WIMBLEDON, England (AP) Roger Federer delivered another vintage Centre Court performance to reach a record-extending 17th Wimbledon quarterfinal.
Federer ousted 17th-seeded Matteo Berrettini 6-1, 6-2, 6-2 in a match that only lasted 1 hour, 14 minutes.
The eight-time Wimbledon champion lost only one point on his serve in the first set and didn’t face a break point until he was up 3-0 in the third. He saved that one and went on to serve out the match at love.
The 37-year-old Federer became the oldest man to reach a Grand Slam quarterfinal since Jimmy Connors did it at 39 at the 1991 U.S. Open.
WIMBLEDON, England (AP) Four-time champion Novak Djokovic is into the Wimbledon quarterfinals again after beating Ugo Humbert in straight sets.
Djokovic took advantage of 34 unforced errors to win 6-3, 6-2, 6-2 on No. 1 Court and set up a meeting with David Goffin.
Djokovic, who beat Kevin Anderson in last year’s final, reached his 11th Wimbledon quarterfinal. That puts him level with Boris Becker in fourth place on the all-time list. Roger Federer was trying to reach a record-extending 17th later.
Goffin beat Fernando Verdasco 7-6 (9), 2-6, 6-3, 6-4.
Sam Querrey also advanced after winning an all-American matchup against Tennys Sandgren 6-4, 6-7 (9), 7-6 (3), 7-6 (5).