The Argentine, fifth in the points standings, will next face Spain's Nicolas Almagro -- who dented Tomas Berdych's hopes of clinching a London berth by beating the sixth-ranked Czech 6-7 (6-8) 6-3 7-6 (7-4) in two hours and 37 minutes.
Federer tastes double defeat in Shanghai
Former world No. 1 falls in singles, doubles on Thursday
Published On: Oct 10 2013 10:26:10 AM EDT Updated On: Oct 10 2013 11:35:43 AM EDT
Copyright 2013 by CNN NewSource. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.