Kohlschreiber defeated Mikhail Youzhny of Russia 6-4, 6-2. Kohlschreiber, a qualifier, broke serve to lead 4-3 in the opening set before going 4-0 up in the second.

Garcia-Lopez edged qualifier Santiago Giraldo of Colombia 6-4, 1-6, 6-4. Giraldo slammed his racket to the ground after netting a backhander to lose the match.

The tournament is the last chance for some players to gain one of the last three remaining spots for the ATP World Tour Finals in London.

Novak Djokovic on Monday continued his waiting game with a recent shoulder injury, which threatens to keep the world number one out of this week's Paris Masters.

The Serb re-injured his right shoulder in a Basel semi-final loss at the weekend and remains unsure of his participation in the last event of the ATP regular season.

With the elite World Tour Finals starting in less than a fortnight in London, Djokovic's immediate future on court remains wide open.

Only his state of fitness is pressuring the ten-time tournament winner this season, with he top seed due to start on Wednesday in the second round after a bye at the Bercy arena against Italian Fabio Fognini or Croatian Ivan Dodig.

Roger Federer arrived in Paris after his home triumph with a fifth Basel title and was setting up s practise session with Frenchman Gael Monfils, last year's losing finalist to Robin Soderling.

While all 16 seeds enjoyed byes, work began in the trenches for the rest of the field in the first round.

The last three spots in the year-end event are to be decided this week, with Czech Tomas Berdych, Jo-Wilfried Tsonga of France and American Mardy Fish filling the spots provisionally.