''Nothing special,'' he said. ''Not a big deal. We just talk about the exchange during the court. But nothing, that's it.''
The discussion apparently referred to an argument during the third set of the match. Wawrinka held up his racquet during Lopez's serve, asking for spectators to stop talking. Lopez questioned the move, and the two had a testy conversation that was interrupted with a smile by umpire Mohamed Lahyani.
''Crowd was still talking next to me. I stop before he was serving, then he asked the umpire what, and then I got involved,'' said Wawrinka.
When the two shook hands following Wawrinka's straight-sets win, Lopez appeared to bring up the subject again and the two argued again for a couple of minutes before shaking hands with the umpire.
Both players were emotional during the match, explained Wawrinka.
''Nothing important. At the end of the day, it's an important match for both. A lot of tension over there, especially with first two tiebreak,'' he repeated. ''Just explaining what was wrong during the match. Nothing big deal.''
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