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Continue to ChatTennis: Roger Federer saves 4 match points, def. Stan Wawrinka 3rd-set tiebreak in semis of ATP Finals (ESPN) http://www.johnjasonfallows.com/2014/11/15/tennis-roger-federer-saves-4-match-points-def-stan-wawrinka-3rd-set-tiebreak-in-semis-of-atp-finals-espn/