South Africa's Mike de Kock was the hero of Audemars Piguet Queen Elizabeth II Cup day in 2006 and has focused his attention on the race again this Sunday, with Archipenko laying out his credentials at Sha Tin yesterday. De Kock has worked a minor miracle with Archipenko in three runs for the stable - all in Dubai - after the Kingmambo colt lost form in the second half of his three-year-old season in Ireland. Former club jockey Kevin Shea took Archipenko through his paces on the main grass track yesterday, while assistant trainer Trevor Brown watched the workout and expressed his delight as Archipenko rushed up the final 200 metres in 11.49 seconds. 'I am very pleased with the horse, and Kevin was very happy with that piece of work,' Brown said. 'He only came to us in Dubai in December. What I like about him is that he's progressive, and he's shown improvement in each of his recent starts. 'He had the chance to take a gap at the 400 metres in the Dubai Duty Free [March 29] but wouldn't take it - Kevin shifted him out and he went the second time he was asked - if he had gone first time, he'd just about have won,' Brown said. Shea said at the time Archipenko's inexperience at the top level was the only thing that stood between victory and defeat and had no doubt the close relation to former champions Nureyev and Sadler's Wells should have won the US$5 million race in the desert. The De Kock stable also won the other big turf race in Dubai, the US$5 million Sheema Classic (2,400m) with Sun Classique, who comfortably beat our own Viva Pataca. 'The extra furlong for Archipenko on Sunday will be in his favour,' Brown added. 'Viva Pataca is obviously going to be tough on his home patch, and I like the chances of the local Derby winner [Helene Mascot] as well, but I think we'll be on top of them in the finish.' In other QEII news yesterday, New Zealand's front-running weight-for-age galloper Sir Slick did a stirring piece of work on the turf track. 'He thrives on his work and revels in whatever you ask him to do,' said trainer Graeme Nicholson. 'It's pretty warm this morning but he didn't mind. He has a marvellous temperament, ate everything we put in front of him last night and looks to be in great shape.'