Querrey will play the winner of the quarter-final between Germany's Rainer Schuettler and Israel's 14th seed Dudi Sela.
And Bohdan Ulihrach of the Czech Republic came through a tough test against Germany's Rainer Schuettler to win 6-2 6-7 7-5.
German Rainer Schuettler , the sixth seed, was also defeated, losing 6-2 7-5 to little-known Frenchman Jean-Rene Lisnard .
Third seed and local favourite Rainer Schuettler overcame countryman Maximilian Abel 6-2 6-4.
Massu will play David Nalbandian in the semi-finals after the Argentine beat Germany's Rainer Schuettler 4-6 7-6 (7-5) 6-3.
In the other quarter-final matches, Spain's Verdasco beat Germany's Rainer Schuettler 7-5 6-2.
Benjamin Becker pulled off another surprise, making up 51 world ranking places to undo fellow German Rainer Schuettler 6-4 2-6 6-4.
Eighth seed Rainer Schuettler didn't enjoy things as much as Federer or Roddick, losing to 30th seed Vince Spadea 6-4 6-2 6-3.
Hewitt went out of the Monte Carlo Masters in the third round on Thursday, losing a tight three-set encounter with Rainer Schuettler.
Seventh seed Jo-Wilfried Tsonga also advanced, beating Germany's Rainer Schuettler 4-6, 6-3, 6-4 to set up an all-French quarter-final against Gilles Simon.
Spain's Alex Corretja takes on compatriot David Sanchez while second-seeded German Rainer Schuettler meets Belgian Christophe Rochus and Czech Radek Stepanek, the eighth seed, faces Swiss Michel Kratochvil.
Haas was forced to retire at the end of the first set of his tie against German compatriot Rainer Schuettler at 4-6 down because of a right shoulder injury.
In other potential quarterfinal pairings, fourth seed Tim Henman of Great Britain would face fifth seed Juan Carlos Ferrero of Spain and Spanish third seed Carlos Moya would meet seventh-seeded German Rainer Schuettler.
Other seeds such as Tommy Haas, Fernando Verdasco, David Ferrer, Lleyton Hewitt, Gael Monfils and Marin Cilic also progressed along with former tournament runners-up Jo-Wilfried Tsonga, Marcos Baghdatis and Rainer Schuettler, but former world No. 7 Richard Gasquet was eliminated.
"I played my best match here for sure, " said Nadal, who will have to wait to discover his next opponent as Arnaud Clement and Rainer Schuettler were forced to stop playing because of fading light when locked at one set all.
应用推荐