It all looked healthy...except for his reaction to the second goal. You can see it at the end of the gif for the second goal below:article on the athletic about darling's first start:
Behind the Save: Scott Darling’s return looked healthy...
He had that same reaction last year often and they would be followed by play that looked less rooted in fundamentals and more in panic. I don't think it is a coincidence that the goal where he clearly got way out of position came after his frustration here. I worry more about the blows to his confidence than I do the ones to his body.