But the 26-year-old continued to make his point to anyone who would listen. He was seen approaching Team Europe's Alexander Zverev. "If you’re just coming back to this, it’s all kicking off about why there wasn’t more tough action taken against Medvedev when he threw that racket away," Bradnam said.

"And the answer is, it didn’t hit anyone, it turned out to be harmless in the end. But Tiafoe is really disgruntled and upset. As you can see, it clattered into the boards and came back again. Somebody just sort of shied away from it. He was very lucky there, Medvedev. Somebody had to move in fear."

But Tiafoe continued. A few games into the second set, he went over to the box of supervisors and other umpires, discussing the incident with Gerry Armstrong. He then sat next to Armstrong to continue the conversation.

Tiafoe will be in action in the next match as he faces Zverev. He eventually left the court to prepare while Shelton stormed back to beat Medvedev 6-7(6) 7-5 [10-7]. It means, if Tiafoe wins, Team World will retain the trophy.