Wawrinka retires from Swiss Open quarterfinals with a back injury
Stanislas Wawrinka was losing 6-4, 2-6, 4-3 to Feliciano Lopez when he retired from the match.
Valeriano Di Domenico/ZumaPress.com
Copyright 2014 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide—from Peter King, Tom Verducci, Lee Jenkins, Andy Staples, Grant Wahl, and more—delivered straight to you, along with up-to-the-minute news and live scores.