Haas Previews Federer Clash In Stuttgart 2017 Jun 13, 2017 Tommy Haas talks about his first-round win and looks ahead to his second-round match against Roger Federer at the MercedesCup in Stuttgart. MercedesCup video. Tags: 2017 Interviews Stuttgart Tommy Haas Share 0 Share on Facebook Tweet Tweet on Twitter +1 +1 on Google Plus