Meeting at the net – Sabine Lisicki, left, beat Agnieszka Radwanska last year to reach the Wimbledon final. But there was almost as much discussion about the handshake as the match itself. It's not the only contentious handshake in tennis history ...
Meeting at the net – There was a rapid, no-look handshake between Serena Williams, left, and Justine Henin at the French Open in 2003. Henin won the match after a controversial incident on Williams' serve in the third set of the semifinal.
Meeting at the net – Sometimes there's no shake at all.
That's the hand of Virginie Razzano. Marion Bartoli refused to shake it in a match in England in 2009. Razzano had earlier said that Bartoli -- who would win Wimbledon later in her career -- played up injuries to help her get an edge on opponents. Last year, there was another no handshake between French players. That featured Michael Llodra and Benoit Paire.
Meeting at the net – Janko Tipsarevic, left, and Radek Stepanek were all smiles prior to their encounter in the Davis Cup in 2012. But after their singles match, Tipsarevic claimed Stepanek gave him the middle finger during the handshake.
Meeting at the net – Tomas Berdych, Stepanek's fellow Czech, was loudly booed in Melbourne in 2012. He refused to shake hands with Nicolas Almagro after he thought the Spaniard hit a ball straight at him on purpose.
Meeting at the net – Of course in the overwhelming majority of cases players do shake hands at the net -- and without any problems.
Meeting at the net – This is how Roger Federer, left,