HALLANDALE BEACH, Fla. – Hall of Fame jockey Edgar Prado will be sidelined at least six to eight weeks after breaking six ribs in a riding mishap Sunday at Gulfstream Park. The injuries will prevent Prado, 48, from keeping his regular seat aboard Breeders’ Cup Sprint winner Runhappy when the horse makes his final 3-year-old start Dec. 26 in the Grade 1 Malibu at Santa Anita. Trainer Laura Wohlers said Monday that Gary Stevens will have the mount.