The Mubadala Tennis World Championship starts on January 1 and to celebrate the first tennis tournament of 2015, we are running a fantastic competition.

If you answer this question correctly, you can win one of four spaces to be trained by one of the stars at a clinic on Day 3 of MWTC.

Imagine that, a clinic with a star player such as Novak Djokovic, Rafael Nadal or Andy Murray!

– Question – Who is the reigning Mubadala Tennis World Championship champion?

TWEET YOUR ANSWERS to @sport_360 and tag #MWTC into the post. 

The competition finishes on Wednesday at 3pm. The four winners will be sent across a letter of congratulations and timings for the clinic on Saturday. 

Good luck!