In preparation for the Dubai Duty Free Men’s Open, Andre Agassi and the world No. 1, Roger Federer, couldn’t resist the temptation to have a friendly knock about on the world’s highest tennis court, the helipad of Burj Al Arab, one of the world’s most luxurious hotel (not for those who travel in style of course, it’s a big wallet hotel in the desert, just see how pathetic the ground looks, what do you do outside the hotel?).