Hollie Doyle: Zavateri is the one to beat in the Greenham Stakes

Jockey Hollie Doyle is set for a busy Saturday with several rides, including Niewiadoma, who makes her debut, and Merlier, who attempts a hat-trick. Doyle is optimistic about her chances, particularly with Zavateri, who she believes is the one to beat in the Greenham Stakes. With various other rides and races to look forward to, Doyle shares her thoughts and expectations for the day's events.