STUTTGART, Germany — Michael Berrer of Germany advanced to the quarterfinals of the Mercedes Cup by beating third-seeded Jeremy Chardy of France 6-2, 6-7 (1), 6-3 on Wednesday.
The 153rd-ranked Berrer, who received a wild card into the tournament, saved all four break points he faced against Chardy, who won the title in 2009.
He will next face Roberto Bautista Agut of Spain, who rallied to beat eighth-seeded Martin Klizan of Slovakia 6-7 (3), 6-1, 6-4.
Second-seeded Philipp Kohlschreiber beat qualifier Nils Langer 7-5, 6-2.
Another German, sixth-seeded Florian Mayer, was eliminated by Gael Monfils of France 6-3, 6-0. Monfils will next play Kohlschreiber.