Federer rallies from a set down to beat Istomin at Swiss IndoorsAuthor:SI StaffPublish date:Oct 23, 2013 Roger Federer gave his hometown fans a scare when he dropped the first set to Denis Istomin.FABRICE COFFRINI/AFP/Getty ImagesCopyright 2014 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.