Unfortunately I didn't get to see the match. Was there any indication that he was injured?
He received treatment on his thigh after the first set. His movement looked awkward at times late in the second set but I'm not 100% sure if it was because of the injury or because he doesn't have good footwork on clay.
And Juan Carlos likes to move the opponent from side to side, so...
Still, JC had to save a couple of break points early in the second set, so it wasn't smooth sailing all the way. But he never panicked and always found his way out.
Good luck to Juan Carlos vs De Bakker!