Harvie Wilkinson, vice president at Keeneland, will retire, effective at the end of January 2011. ... French sale company Arqana announced Tuesday that it will add a half-day auction session to its Oct. 18-21 Deauville October yearling sale to allow potential buyers more time to review the 550 horses in the catalog. The half-day session, comprising about 80 yearlings, will take place Oct. 21.