Jelena Jankovic's bid for a fourth straight tennis title has ended at the Zurich Open with her shock second round loss to the unseeded Italian Flavio Penetta.
Serbia's world number one said she had no gas left in the tank after winning three titles in different time zones and climates.
Meanwhile, at the Madrid Masters men's tournament, the unseeded Frenchman Gael Monfils has knocked off another seed - the number 6 Andy Roddick - to reach the fourth round.
The 4th seeded Scot Andy Murray was another third round winner.
