- Kyrgios and umpire under scrutiny at US Open
After Kyrgios let two serves pass him by while he was a set and 3-0 down to the Frenchman and reportedly threatened to quit the match, umpire Mohamed Lahyani climbed down from his chair and said he wanted to "help" the 23-year-old Aussie.
"I want to help you," Lahyani could be heard telling Kyrgios from TV microphones, "I know this is not you."
The pep talk had quite the effect with the world No. 30 going on to claim the set and win the match against Herbert 4-6 7-5 6-3 6-0.
'From that moment he dominated the match'
However, several tennis players and commentators were quick to criticize the umpire's intervention.
"I don't think this is appropriate for an umpire," 27-year-old Herbert told reporters after the match.
"We don't know what would have happened if he (Lahyani) didn't do it. We're not supposed to have a coach on court," he said, suggesting that he could have won if the umpire didn't intervene.
"Nick from his side is not to blame as he did not ask for anything. But his behavior and motivation on court changed from this moment and then he dominated the match," Herbert said in a statement.
The Association of Tennis Professionals
rules that male players are not allowed to receive on-court coaching and Herbert said he believes Lahyani should be sanctioned for his actions.
"If he makes a mistake, I think he should be also punished.
"He doesn't make that many mistakes, I think he's a really good umpire but today I think he went over what he should have done," Herbert told reporters.