Leander Paes and Mahesh Bhupathi bowed out of the ATP World Tour Finals following a semifinal loss to eighth seeded Poles Mariusz Fyrstenberg and Marcin Matkowski in London.Fourth seeds Paes and Bhupathi, competing in their last tournament together since rejoining forces earlier this year after a nine-year separation, went down 4-6, 6-4, 6-10 in one hour and 39 minutes last night.Fyrstenberg and Matkowski will now meet third seeds Daniel Nestor and Max Mirnyi in the doubles final.