By Nick Georgandis
Janko Tipsarevic dropped two spots to No. 12 in the world in the latest ATP rankings release, following his early-round exit last week that dropped the former No. 8 Serbian to just 11-11 on the year.
Switzerland's Stanislas Wawrinka rejoins the Top 10 ahead of Tipsarevic, who was also passed by new No. 11 Marin Cilic.
Argentina's Juan Monaco, who won the 250-point title at Dusseldorf on Sunday, moved up two spots to No. 17, jumping France's Gilles Simon and Germany's Philipp Kohlschreiber.
The biggest mover in the Top 50 was Spain's Albert Montanes, who soared 35 spots to No. 47. The 32-year-old Montanes, formerly a Top 25 player, made the big jump by winning at Nice over Gael Monfils, who himself jumped 28 spots, landing back in the Top 100 at No. 81.
There were no changes in the WTA Top 20 ahead of the opening of Roland Garros.
There were two big moves by familiar faces just outside of it. China's Shuai Peng jumped 11 spots to No. 23 and Estonia's Kaia Kanepi moved up 14 spots from 40th to 26th.
Kanepi defeated Peng in the final at Brussels on Sunday. Peng upended American phenom Sloane Stephens in the quarterfinals, while Kanepi upset Dominika Cibulkova in the first round and never looked back.
Meanwhile, Venus Williams slipped out of the Top 30 to No. 32. Williams has played just 14 matches so far this season and the lack of tournaments is sinking her point total.