Tarnawa winning in Keeneland last year© Photo Healy Racing
Dermot Weld is happy with Tarnawa's recovery and work since finishing runner-up in the Prix de l´Arc de Triomphe, but issued concerns over the ground at Del Mar ahead of her Breeders' Cup trip.
The five-year-old mare bids to retain the Breeders' Cup Turf after Colin Keane steered her home in Keeneland last year.
“The Arc took a fair bit out of her but she’s an amazing animal with a wonderful constitution and huge determination," Weld said.
“After a week when she was tired, she has bounced right back and I was pleased with a bit of work she did the other morning.
“She flies out with the other Irish and English contingent, about 35 horses altogether, next Friday.
“The track is going to be my biggest concern. It’s where the surf meets the turf and it’s very firm.”
Additional reporting by Alan Magee