Jockey Keith Asmussen has returned to the saddle following serious injuries suffered in a riding mishap June 1 at Churchill Downs, a press release from the track said on Friday. Asmussen has been galloping horses for his Hall of Fame father, Steve, this week under the Twin Spires. The jockey was transported to the hospital in Louisville with extensive injuries, including a fractured right femur and three broken ribs, and had surgery the following day. His mount, Singsational (Audible), who clipped heels, was able to get up under his own...