Hitting the pads with Mike Tyson, DJs, dance choreography and karaoke - it's not your standard pre-season for American tennis stars Serena Williams and Coco Gauff.
Coach Patrick Mouratoglou has taken his charges for a training camp with a difference in preparation for the Australian Open in January.
"I wanted to renew with the tradition of organising a team-building camp to prepare for the Australian Open," he said.
"Along with Serena, we brought in a new, crazy-talented generation of players, and even some DJs and fitness gurus."
Twenty-three time Grand Slam singles champion Williams, 15-year-old Gauff and 6ft 7in American Christopher Eubanks are among those being put through their paces in Boca Raton, Florida.