Throughout the match, the players who had come up to mark him had maintained their distance and only came at him when he tried to get past them.
Additionally, instead of going for the ball, which would make it easier for him to dodge their tackles, they instead tried to insert themselves between him and the ball whenever he tried to push the ball past them.
While this could not completely stop him, it did slow him down… a lot.
Once he had been slowed down that much, the marker could then have a teammate join the press and steal the ball from Jason, or if there was no other choice, they would foul Jason instead.
All the goals scored had started with him, but they had all somehow ended up with him going down. In the first two, it wasn't clear as he had been fouled clearly, but on the third goal, it was very clear what his marker had done.