Amr Zedan, the owner of Arkansas Derby winner Muth, has filed a lawsuit against Churchill Downs Inc. seeking a temporary injunction that would allow his horse to run in this year’s Kentucky Derby despite a ban on the horse’s trainer, Bob Baffert, according to a press release issued by Zedan’s public-relations firm and a copy of the lawsuit.

Endlessly is scheduled for his first workout over the Churchill Downs dirt track Friday or Saturday, although his Kentucky Derby status is uncertain. Endlessly has won five of six on turf and synthetic, including four stakes and a four-length victory March 23 in the Grade 3 Jeff Ruby Steaks at Turfway Park. Endlessly earned 100 Derby qualifying points.

Sierra Leone versus Dornoch, Round 2, is on for the $1 million Blue Grass Stakes on Saturday at Keeneland.

Those two colts met Dec. 2 in the Remsen Stakes at Aqueduct, where Dornoch rode an inside-speed bias to a narrow victory over Sierra Leone, who rallied to take the lead in the final furlong before losing it again at the wire. While Dornoch’s performance was bias-aided, it also was brave, the colt regaining the lead after contesting a fast pace.

Fierceness, runaway winner of last Saturday’s Florida Derby, has been made the 7-2 morning-line favorite for the final Kentucky Derby Future Wager pool, according to a list of entrants distributed by Churchill Downs on Tuesday.

Fierceness, who won the Florida Derby by 13 1/2 lengths in his final Derby prep, was listed as the solid favorite among 39 individual entrants and the “all others” entry. Sierra Leone, who is pointing to this Saturday’s Blue Grass Stakes, is listed as the second choice at 6-1, while Catching Freedom, winner of the Louisiana Derby, is third choice at 8-1.

HOT SPRINGS, Ark. – Trainer Bob Baffert said Sunday that Southern California-based Muth handled a number of new variables with aplomb winning Saturday’s Grade 1, $1.5 million Arkansas Derby at Oaklawn Park – save one.

“The only thing he didn’t handle was the flowers,” Baffert said of the blanket of gardenias. “When they went to put the flowers on, he didn’t want any part of that. I told them to bring them back home. We’re going to school him in the flowers.”

HALLANDALE BEACH, Fla. – Trainer Todd Pletcher said Sunday that Fierceness came out of his record-setting 13 1/2-length victory in Saturday’s $1 million Florida Derby in good order while continuing to marvel at the scope of the reigning juvenile champion male’s performance, which more than made amends for his disappointing third-place finish in the Grade 3 Holy Bull eight weeks earlier.

The Japanese connections of the 3-year-old colt Forever Young have made no secret of their desire to run the horse in the Kentucky Derby. The 100 qualifying points Forever Young earned winning the U.A.E. Derby on Saturday, a key cog in Churchill Downs’ Road to the Derby, assure him a spot in the field, and Forever Young leaves Dubai for Churchill on April 10.