Reigning champion trainer John Size may have weight of numbers in the Group One $8 million Stewards' Cup today as he seeks to maintain his perfect record in the race but arch-rival Tony Cruz could be the thorn in his side once again with Perfect Partner. Size and Cruz have become the fiercest of rivals in the past two seasons vying for the championship where Size has prevailed, but Cruz has taken a handy mid-term lead in that race this term. And, as the battlefield switches to the Group One mile that Size has taken three times in three attempts, Cruz-trained Perfect Partner and Bullish Luck give him two great chances to topple Size's quartet - defending Stewards' Cup champion Super Kid, Derby hopeful High Intelligent, Palette Natural and Great Delight. Cruz won virtually all there was to win last season but had to play a loser's role as Super Kid took the Stewards' Cup and will be out for revenge this afternoon. The feature looks incredibly open, as David Hayes has a strong hand in a race he has won twice previously, saddling up racing's first lady, Elegant Fashion and the find of the early season, Ain't Here, while Caspar Fownes-trained The Duke is capable of upturning the favourites as has become his trademark. With so little between so many horses, luck in running will be worth a fortune, and that is something Perfect Partner has not always enjoyed this season but he confirmed his place as one of the top milers in the SAR with his second placing behind Firebreak in the Hong Kong Mile last start and his work has indicated the five-year-old has not gone backwards since that run. The Stewards' Cup looks evenly run with regular frontrunners Great Delight and Figures drawn wide though, with the exception of Stay Young which has led but not in the recent past, their 11 rivals would probably be quite comfortable allowing the pair to push and cross to the lead positions. With Felix Coetzee to do the navigating, Perfect Partner will look for a midfield trailing position to relax behind the speed before producing his powerful finish in the straight. Stablemate Bullish Luck also unwound a brilliant effort on the international card when second in the Hong Kong Cup and a reproduction of that will see him highly competitive for Christophe Soumillon, but his question is whether he can switch as effectively back to the mile from 2,000 metres. That is the case too for Ain't Here, after he had no luck at all down the straight in the Hong Kong Cup after improving in leaps and bounds leading to the international meeting. But while Cruz may look to hold the stronger hand, Size will be right in the thick of things after Douglas Whyte's mount Super Kid (gate six) and Shane Dye-ridden High Intelligent (gate three), got the best of the draw and should be in front of their main rivals turning for home.