You couldn't have a guest for him as he isn't your number 1, however when the new averages come in at the end of the month he will then go to number 1 so then you will be able to get guests for him.
That is the rider order that I would have gone with but according to an article in the Argus the new riding order is:1) Brennan
2) Bates
3) Knight
4) Wood
5) Baseby
6) Spooner
7) Powell
Eagles:
Mark Baseby, Kelsey Dugard, Ben Hopwood (Guest), Mattie Bates, Georgie Wood, Charley Powell, Tom Brennan
Potters:
Mitchell Davey, Shaun Tedham, Ryan Terry-Daley, Tony Atkin, Luke Priest, David Speight, David Wallinger
Not sure how Bates is a poor second string when in his 3 meetings before the Mildenhall one his scores were 9, 6+1 and 9+1. Also the reason he had a bad meeting at Mildenhall was because he blew an engine?.
Bates is fit enough to ride tomorrow at Mildenhall, Jack Parkinson-Blackburn will guest for Connor Coles who is riding for Newcastle and Charley Powell is unavailable as he is riding grasstrack.