Jockey Stewart Elliott will miss the remainder of the Lone Star Park meet after he was diagnosed with two hairline fractures in his tailbone, according to his agent, Scott Hare.  Hare said Elliott would return to action for the Remington Park meet that opens Aug. 16. The Lone Star season closes July 14.  Elliott was thrown from a 2-year-old during a post parade on the Lone Star Million Day card May 27, but he rode the program as well as the following week before notable pain starting setting in and he sought medical diagnostics.    Hare said an MRI revealed the hairline fractures. There was no surgery needed, and Elliott simply needs downtime to heal, Hare said.  Elliott, who won the Kentucky Derby in 2004 aboard Smarty Jones, has won multiple riding titles in Texas and Oklahoma. He is a regular aboard horses trained by Steve Asmussen.  Elliott was second in the Lone Star standings earlier in June. The meet’s leading rider, Harry Hernandez, also has been sidelined for the remainder of the meet after sustaining a collapsed lung and four broken ribs June 14.  Jockey Chris Landeros, who is riding at Churchill Downs and Horseshoe Indianapolis, will travel in for the Friday through Sunday cards at Lone Star, said Hare, who will represent the rider for mounts in Texas.  Lindey Wade also has begun accepting mounts at Lone Star. :: Want to learn more about handicapping and wagering? Check out DRF's Handicapping 101 and Wagering 101 pages.