I suggested "The Dr.", since his initials are "D.R." Any other suggestions?
It's a little corny, as Ash pointed out, but it is simple and complimentary.
Of course, something with more humor and pizzazz would be wonderful, but it also has to "fit" him.
You'd think after a 6-run 1st inning, and a 7-run 7th inning, we'd all be full of amazing thoughts and quips. Hopefully, someone out there is, otherwise, I'll go with "The Dr."