This was outright poor from Richard.
I really wonder what it is about his injury. If it is too bad to play, then take the necessary time to cure it. If not, show some resistance. This was a reminder of his worst times, when he just faded after the first set lost, which he had hardly done since he is with Markus and was fully fit.
Stakhovsky played very well though. Some magic on the court, particularly on those 8 Bps. And in the end he just had to serve.