Chelsea manager Jose Mourinho decided to play a prank on his staff before a training session in Montreal on Monday.
The Premier League champions have been based in the Canadian city for their pre-season tour of North America.
Before the players got training underway, Mourinho gathered members of the club's staff, as well as team captain John Terry, and told them to sit down and pretend to fly an aeroplane.
After the group landed the imaginary plane, Mourinho instructed people to throw buckets of icy water all over the unsuspecting staff.
The prank was caught on film by Chelsea's media team.
