Novak Djokovic and Grigor Dimitrov had some fun on Thursday during the Boodles tennis exhibition in London.

The light-hearted event showcased Djokovic’s sense of humor and even Dimitrov who let the Serb carry out another of his many imitations of his girlfriend Maria Sharapova. Dimitrov even joined in on the act, though Maria may not be as amused as the crowd was.

The event which runs this week offers the top players a chance to get their grass footing and that includes Djokovic who didn’t enter a Wimbledon warmup.

“Everything is going according to plan and hopefully I can get in the best possible shape for the start of Wimbledon,” said Djokovic. “I know what I need to do in order to adjust from the slowest to the fastest service in a very short period of time.”

Tomas Berdych, Sam Querrey, Jerzy Janowicz, Juan Martin Del Potro, Milos Raonic and Richard Gasquet are some of the other players in the event.

The pair also performed a strip tease: