TTR was used during challenges. Elbeiali's serves were faulted and he challenged, hence the TTRs. HYZ was warned once and then he modified his service. I wonder if it's just a HYZ thing or a CNT thing because he really modified his service by a lot after the warning, with a much straighter toss and serving much farther away from his body (warning was for head hiding the ball, same as Elbeiali). Elbeiali's issue is that he didn't modify his service at all. He literally served the exact same way immediately after the warning, drawing an immediate fault.I only saw Elbeiali gettig TTR. And to me his serves that were TTRed were blatantly illegal. HYZ serves was far less illegal to me