Joel Rosario will fly in from New York to replace the injured Victor Espinoza aboard Accelerate in the Grade 1, $1 million Pacific Classic at Del Mar on Aug. 18, trainer John Sadler said Monday morning.

Sadler said he and Rosario "have a good history together," going back to when Rosario was a regular on the Southern California circuit. They were the leading trainer and jockey at the 2009 summer meeting here, for instance.

"We won the title here, won some big races together," Sadler said. "He's a good rider. And he was available."