The last couple of days have been full of news - and not all of it good - about this year's Kentucky Derby hopefuls.

Winslow Homer, winner of the Grade III Holy Bull just over a week ago, is off the Derby trail with a stress fracture. According to owner Rick Porter, the injury is not career-threatening and the colt should return to training in early April. The son of Unbridled's Song has won all three of his starts at three different tracks, and was being pointed to the Fountain of Youth later this month.

Champion 2-year-old Lookin at Lucky returned to the racetrack this morning after spending the weekend getting over a slight illness that included a temperature. The early Derby favorite hasn't started since winning the CashCall Futurity in early December; trainer Bob Baffert plans to start the colt in California in March, but no race has been selected yet.

Dublin, winner of the Grade I Hopeful at Saratoga last summer, is looking fit and ready for his 3-year-old debut. The son of Afleet Alex breezed a strong six furlongs in 1:14 at Oaklawn this morning, still showing some immaturity but overtaking two workmates easily enough in the stretch. The move was the best of six at the distance. Terry Thompson was aboard and will keep the mount on Dublin for the Southwest Stakes on Feb. 15, the first of two preps leading up to the Arkansas Derby in April.

Yesterday morning at Santa Anita, two well-regarded colts turned in their final works for this weekend's Robert B. Lewis Stakes. Tiz Chrome zipped five furlongs in 59.20; the Baffert-trained son of Tiznow is 2-for-2 lifetime, including a win in the Stuka Stakes in December. The same morning, American Lion covered the same distance in a minute flat. Eoin Harty trains this colt, also by Tiznow, who won the Grade III Hollywood Prevue in November and has been freshened for this.

In Oaks news, Steve Asmussen had two of his newly turned 3-year-old fillies out on the track this morning at the Fair Grounds, as Dashing Debby went a half in 50.40 and Hot Dixie Chick went the same in 51.20. Hot Dixie Chick won the Schuylerville and Spinaway at Saratoga last summer, but hasn't started since the latter. Dashing Debby, a daughter of Medaglia d'Oro, broke her maiden in the JJ's Dream Stakes at Calder last July and was privately purchased by Jess Jackson - who also owns another Medaglia d'Oro filly you may have heard of - but she's finished poorly in two stakes since. Both fillies recently returned to work after getting the winter off.