Rory McIlroy has labelled some of the players who have joined the LIV Golf Series "duplicitous" for the way they completed their move.
Four-time major winner Brooks Koepka is the latest name to sign up to the Saudi-backed invitational events.
The County Down native was speaking to reporters ahead of the Travelers Championship and the topic inevitably surfaced.
When asked if he was surprised about Brooks Koepka's decision to join the rival tour, McIlroy did not hold back.
"Am I surprised? Yes, because of what he said previously," McIlroy said.
"I think that's why I'm surprised at a lot of these guys because they say one thing and then they do another.
"I don't understand that, and I don't know if that's for legal reasons or if they can't - I have no idea.
"But it's pretty duplicitous on their part to say one thing and then do another thing."
LIV Golf confirmed later on Wednesday that Koepka had joined the breakaway tour and will compete at Pumpkin Ridge Golf Club in Portland
Welcome @BKoepka ?#LIVGolf pic.twitter.com/n37qI712NP
— LIV Golf (@LIVGolfInv) June 22, 2022
Responding to Koepka’s departure, PGA Tour commissioner Jay Monahan said: "I am disappointed that Brooks Koepka has left and has joined the LIV Golf series.
"I have not had a chance to talk to him about it, and I look forward to having a conversation with him.
"But I am not going to share any more than that at this point in time.
"Every player that has left, I have great admiration and respect for the contributions they have made to the PGA Tour.
"I think a lot of players have had a hard time making that decision."