Not sure why you are still bullying this person over semantics. Most people would use the word "riders" as a generalism, not as a specific plural.
Anyway, anyway, anyway: Harley Horwood, Damien Koppe, Ryan Douglas, Mickey Dyer, Simon Nielsen - and others (they were off the top of my head).
I have long been an advocate that if non-Brits are employed, then their Green Sheet must never drop below their starting assessed average. If they aren't good enough to maintain it, then it shouldn't be possible to re-employ them at a lower value.