Really was a superb assist. He was probably brought on really to make sure Xhaka didn't pick up another yellow, but nonetheless, even in a short sub appearance, if you can come away having done something important like that assist for the team, then it's job well done.
He reminds me in a way of Edu. Unsung, unassuming, but chips in with an important bit when you really need to. Good going Elneny