Kyrgios, Simon mimic Nadal's pre-serve mannerisms

Nick Kyrgios was called for a time violation in the midst of his second-round match against Gilles Simon.

His response: mimicking intermittent-rival Rafael Nadal's hair-behind-ear gestures and, well, other pre-serve tics, as commonly performed by the 19-time major singles champ from Spain.

The No. 23 seed's mimicry elicited smiles even from the match's chair umpire. Simon got in on the action as well, by some Twitter reports:

Nadal, to his credit, simply didn't care about any of it.

One of host Australia's best threats for a title, or even a deep run, Kyrgios ultimately prevailed in the match, taking a 6-2 6-4, 4-6, 7-5 victory over the unseeded Simon.