Al Riffa is being prepared for a bid on Dubai World Cup night, with trainer Joseph O'Brien eyeing a tilt at the Dubai Sheema Classic on April 5. The dual Group One scorer made his first start of the year in Saudi Arabia, finishing third in the Neom Turf Cup. O'Brien believes stepping up to 12 furlongs on a bigger track at Meydan will be a real positive for Al Riffa.