Querrey edges Nieminen, advances at Winston-Salem OpenAuthor:SI StaffPublish date:Aug 21, 2013 Sam Querrey saved several match points against Jarkko Nieminen to move to the quarterfinals in Winston-Salem.Streeter Lecka/Getty ImagesCopyright 2014 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.