Swiss star Roger Federer has hit back at Nick Kyrgios' claims that Team Europe were 'boring' at last year's Laver Cup.
The current World Number Two has responded in-depth to Kyrgios' comments, stating that the young team were still beginning to gel together for the new competition.
Speaking in response to the comments, Federer said: "They were a much younger team last year, let's be honest, also, for a second.
"We [Marin] Cilic and [Tomas] Berdych, not they're old, and Rafa (Nadal) and me. We were happy to sit and fist-pump when required.
"We knew where the finish line was. This was a marathon, the weekend, not a sprint.
"They took it as a sprint. They were all out, and it was a lot of fun to watch. I was smiling sometimes, but then it got a little bit much at the end, but it got really intense because of it, I think. I'm actually excited to see what they're going to do.
"We have new team members. It's just Sascha (Zverev) and myself, from last year, so we know how to handle their antics, you know. But honestly, it was great camaraderie, after all. We'll see what we do or not. But I think we are here to win, really, to be honest."
The Laver Cup, a competition between Team Europe and Team World, takes place on indoor courts two weeks after the US Open, but was only commissioned in 2017.
With this year being its second edition, Federer admitted that it is tough for new competitions to gain prestige among the majors.
"It’s a hard thing to do." he said.
"Tennis doesn’t change, but here we are with a trophy. We will leave one another inspired and motivated. We have a lot of time in between rides from hotels to tournaments, and I was talking to my agent and I said I thought it would be nice to honour the legends in some shape or form."