Azarenka pulls out of Wimbledon after injuring knee in first roundCopyright 2014 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.SI Staff|Azarenka pulls out of Wimbledon after injuring knee in first roundShare on FacebookShare on XAdd us on Copyright 2014 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.Published Jun 26, 2013 | Modified Jun 26, 2013SI STAFFShare on FacebookShare on XHome/Tennis