Former sumo wrestler Kelly Gneiting poses before a training session for the U.S. sumo Open.
Van Marwijk said Robben had had only one full training session in the last three weeks.
The world's fastest man, Olympic gold medalist and world record holder Usain Bolt, once visited a Manchester United training session.
Toure was so impressed he asked to have a solo training session at 9pm on the night he arrived to sign his contract.
Mr. Obama has offered to buy personal training sessions for his most recalcitrant staffers.
