Jockey Flavien Prat, the leading rider in Southern California this year, will miss his mounts at Santa Anita on Friday because of the effects of a sinus infection, according to his agent, Derek Lawson.

Here are the replacement mounts - 

In the third race, Victor Espinoza rides Perfect Rush (3).

In the sixth race, Geovanni Franco has the mount on Raymundos Secret (8).

In the eighth race, Joe Talamo rides Combat Zone (4).

Prat is booked to ride at Keeneland on Saturday, and plans to travel overnight to Kentucky, Lawson said.