Trained by Martyn Meade, Chilean has won two of his three starts to date, most recently taking a Listed race in facile style at Haydock.
Atzeni's golden run began with Kingston Hill in 2013, with Elm Park, Marcel and Rivet scoring for him subsequently.
Prior to that, Aidan O'Brien had won three of the previous four renewals and he currently has 12 of the 22 entries as he goes in search of a record 26th Group One win of the year.
"He's a good ride to get. On Sunday I didn't think I'd have a ride, but it's nice to get one like him," Atzeni said.
"He's definitely going the right way, he was very impressive last time at Haydock on very soft ground.
"Obviously he needs to improve again, but he is an improving horse and I'm looking forward to riding him on Saturday.
"It's been a very lucky race for me, to win four in a row is special and it would be nice to do it five times, so we'll have a go on Saturday."