He moved into space on the edge of the box, anticipated the ball coming out, took the chance superbly on the volley, giving the keeper no chance and won the game.
You can't ask for any more than that.....
It was top drawer. Not only was it very difficult to get it accurate, but Trossard said in the post-match interview that the ball was put in his path, but at the same speed as Gross received it.
Trossard appreciated the quality of the pass that made his job easier, and said so.