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We have a busy day's racing on Sunday with action from Brighton, Worcester and Deauville, live on Sky Sports Racing... <h3><strong>3.25 Deauville - Diamond Necklace seeks fifth top-level success</strong></h3><p>All eyes will be on <strong>Diamond Necklace</strong> as she heads a stellar field for the Group One <em>Sumbe Prix Jean et Louis Romanet</em>.</p><p>Aidan O'Brien's crack three-year-old filly has won all six starts with four coming in Group One company. A dominant winner of the Nassau at Goodwood last month, she again tackles her elders and will be expected to make it seven in a row.</p><p><strong>Rebel Moon</strong> is a lively contender for Joseph O'Brien with Dylan Browne McMonagle in the saddle. She caught the eye when fourth in the Irish Oaks and may be capable of better.</p><ul><li><strong><a href="https://www.skysports.com/racing/news/12426/13575556/york-ebor-festival-bacio-blazes-a-trail-to-win-nunthorpe-stakes-as-arapaho-gold-takes-gimcrack-stakes-honours">Bacio blazes a trail to win York's Nunthorpe Stakes</a></strong></li><li><strong><a href="https://www.skysports.com/racing/news/12040/13575099/kalpana-wins-yorkshire-oaks-as-gutsy-display-enough-to-see-off-sparan-nua-on-day-two-of-ebor-meeting">Kalpana shows guts to go with her class in Yorkshire Oaks</a></strong></li></ul><p>Last year's Prix Vermeille winner <strong>Aventure</strong> looks the main danger for Christophe Ferland. She probably was not at her best behind Calandagan at Saint-Cloud and is better judged on her Group Two victory in May.</p><p><strong>Red Letter</strong> rates the best of the rest.</p><h3><strong>2.50 Deauville - Orthodox, Man's Best Friend and Senorita Bonita clash</strong></h3><p>A stunning renewal of the <em>Sumbe Prix Morny</em> sees <strong>Orthodox</strong> and <strong>Man's</strong> <strong>Best</strong> <strong>Friend</strong> among eight runners.</p><p>Aidan O'Brien is triple-handed with <strong>Man's Best Friend</strong> the pick of Ryan Moore. Fourth on debut, he stepped forward to land a Naas maiden before running out a ready winner of the Group Two Richmond Stakes at Goodwood. That form puts him in the mix with the promise of better to come.</p><p><strong>Great Barrier Reef</strong> had a setback after winning the Coventry Stakes at Royal Ascot and must be tracked in the markets.</p><p>Norfolk Stakes winner <strong>Orthodox</strong> is a fascinating runner for Clive Cox. He stormed away over that stiff five furlongs and the step up to six furlongs should hold no fears.</p><p><strong>Senorita Bonita</strong> outpointed Libertango at Newmarket on her last start and with that runner scoring at York this week, she must be feared.</p><widget id="1"></widget><h3><strong>3.50 Brighton - Hat-trick seeking Arnaz faces in-form rivals</strong></h3><p>A fiercely-competitive rendition of the <em>Brighton Summer Series Final</em> as the <em>Blackmore Equestrian Construction Handicap </em>arrives at 3.50pm.</p><p><strong>Arnaz</strong> represents Mark Loughnane with son Billy in the plate. He is in great spirits after a pair of wins at Chepstow and should remain of interest in this warmer heat.</p><p>Plenty have each-way chances with last-time winners <strong>Diomed Spirit</strong> and <strong>Big Time Rascal</strong> of most interest.</p><p>Top-weight <strong>Prefer The Sister</strong> warrants respect having hit the front two on her last five starts.</p> <widget id="2"></widget><h3><strong>Best of the rest</strong></h3><p><strong>12.58 Deauville </strong>- Group Two <em>Prix du Calvados</em> - <strong>Dee's Funny Girl</strong> represents Donnacha O'Brien.</p><p><strong>1.33 Deauville</strong> - Group Two <em>Prix Kergorlay</em> - <strong>Santorini Star</strong> will be popular. <strong>Defiantly</strong> runs for Joseph O'Brien.</p><p><strong>4.20 Brighton</strong> - <strong>Sea Suite</strong> tops Class Four field.</p><p></p>
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