Horse Racing News by Bloodhorse

Discreet Marq, invading from New York for trainer Christophe Clement, shot to the lead coming into the stretch and proved best through the lane to register a mild upset in the $300,000 Del Mar Oaks at Del Mar Aug. 17.

If Little Mike repeats in the Arlington Million Aug. 17, breeder/owner Carlo Vaccarezza might use the Arlington Park winner's circle as a platform to challenge reigning Horse of the Year Wise Dan to a match race.

Priscilla Vaccarezza's 2012 Arlington Million winner Little Mike will defend his crown Aug. 17 at Arlington Park, but faces a stiff challenge in a 13-horse field that includes the winners of Group/Grade 1 races on four other continents.

Delaware Park stewards have suspended veteran trainer Donald Roberson for two years for possessing hypodermic needles, hypodermic syringes, and injectable medications.

Claiborne Farm and Adele Dilschneider's Departing and Repole Stable's Overanalyze are among the expected starters for the $750,000 West Virginia Derby at Mountaineer Casino, Racetrack & Resort Aug. 3.

WinStar Farm announced that Grade 1 winner and millionaire Take Charge Indy has been retired from racing after surgery to repair his left foreleg resulting from an injury sustained in the July 28 Monmouth Cup.

Joel Rosario, who guided Dullahan to victory in the $1 million TVG Pacific Classic in 2012, will ride Game On Dude instead in the 23rd edition of the signature event at Del Mar Aug. 25.

Multiple Grade 2 winner Mucho Macho Man, runner-up in the 2012 Breeders' Cup Classic, completed his serious preparations for the $750,000 Whitney Invitational Handicap.

Stuart Janney III and Phipps Stable's Kentucky Derby winner Orb is working his way back to racing at Fair Hill, the Elkton, Md. training center where he's been stabled since June 9, the day after finishing third in the Belmont Stakes.

Eblouissante, half sister of 2010 Horse of the Year Zenyatta, will return to the races July 20 when she aims for her first career stakes win in the $200,000 84 Lumber Shuvee Handicap at Saratoga Race Course.