Ballydoyle trio tackle Dubai Turf Aidan O'Brien fires a three-pronged assault in his bid to win the Dubai Turf for the first time at Meydan on Saturday. Ryan Moore has sided with Deauville over stable companions Long Island Sound (Seamie Heffernan) and Cougar Mountain (Donnacha O'Brien). Donnacha O'Brien told the Dubai Racing Channel: " Cougar Mountain is a solid horse. He sometimes find Group One level a bit tough, but there's a lot of prize-money in the race and hopefully he can pick up a bit of it. "He's a real globetrotter and I'm particularly fond of him. He's taken me around the world. "Deauville picked up a Group One last year and Long Island Sound went very close. Hopefully they'll improve as four-year-olds and they should make their mark at the top level this year." Heading the betting is the impeccably-bred French challenger Zarak. A son of Dubawi out of the great racemare Zarkava, the four-year-old looked the part when winning a Group Three at Meydan in mid-February. Trainer Alain de Royer-Dupre said: " He is in good form and ready for the race. But it is going to be tough as there are some good horses in there. "He won his prep race well here - very well, in fact. "He has grown quite a bit since last year and while the race is tough, with some serious horses like last year's Prix Jacques le Marois winner Ribchester in it, I'm hopeful he will run well."