Second seed Philipp Kohlschreiber recovered from a set down to battle past Bjorn Phau and into the quarter-finals of the Open de Moselle in Metz.

German Kohlschreiber needed an hour and 49 minutes to see off his compatriot after dropping the first set, eventually winning 4-6 6-3 6-2.

Next up for Kohlschreiber is Evgeny Korolev of Russia, who also recovered from a set down to beat Denis Istomin 3-6 7-5 7-6 (7-2)

Third seed Paul-Henri Mathieu of France beat Marc Gicquel 7-6 (7-5) 6-4, while Germany's Andreas Beck, seeded seventh, was a 6-2 6-4 winner against Frenchman Thierry Ascione.

Also today there were first-round victories for French pair Michael Llodra and Sebastien Grosjean.