The Scottish DJ - who currently resides in Beverly Hills - has signed up to the 'Candy' hitmaker's Los Angeles' squad, which sees him and a number of other stars meet up on a weekly basis for a friendly kick-about and a gossip.
A source told The Sun newspaper: ''After daughter Teddy, his missus Ayda and music - football is one of the biggest loves of Robbie's life.
''He is not a big party guy, so hosting friendly matches with some of his pals is the main socialising that he does.
''Calvin is the latest guy to be signed up.
''He'll fit right in because he's quite a guy's guy and very down to earth.
''This is all just about having a kick-about with friends, nothing showbiz.''
Robbie, 39, used to have his own official squad LA Vale - named after his favourite British team Port Vale - and a kit until 2007, when he realised he had been allegedly conned out of $400,000 by two teammates, who asked him to fund their fashion label but blew the money on partying instead.
However, Robbie - who has 17-month-old daughter Teddy with his wife Ayda Field - still regularly arranges fixtures so that he can continue with his passion for the sport.
David Bowie and Rag'n'Bone Man both won two awards at the 2017 BRIT Awards at the O2 Arena in London last night.
The grime superstar will top the bill on Saturday night at Finsbury Park's Wireless Festival in July, with The Weeknd and Chance The Rapper also...
Martin Scorsese's upcoming 'The Irishman', featuring Robert De Niro, is reportedly moving to Netflix from Paramount.