For several days the internet works #IceBucketChallenge action in which sports star is surrounded with ice water and challenge the nominating 3 other people. Was also nominated Grigor, who has done the job and nominated among other things, his girlfriend Maria Sharapova. Nominees have 24 hours to complete the task.

video : http://t.co/RHiEGtSr6k

From Instagram, Grigor : ''Thank You All for nominating me for the ALS ice bucket challenge. I now nominate @MariaSharapova, Chris Kermode and @darren cahill . You guys have 24 hours! Thanks boys form smacking me with that bucket!!! ''. 

Challenge also adopted Greg Norman, a friend Grigor, of which the Bulgarian spent last time. Grigor helped him and his coach Roger Rasheed :)

Norman on Instagram: ''@tommyhaasofficial DONE & I call out @AndreAgassi, @ChrissieEvert & Adam Scott. Thx @GrigorDimitrov @rogerrasheed ''. 

Norman : ''3 amigos after our respective #icebucketchallenge (...) , good luck at the US Open. Be strong. See you there and it was great to have you in Sth Florida'' 

Norman : ''Top 3 best one handed backhands in @atpworldtour tennis''. 

Grigor is in New York preparing for the upcoming US Open. Start Tournament on Monday. Draws will be on Friday.