The Irish assistant manager was speaking after Chelsea lost to PSG in the Champions League
It is safe to say that Roy Keane is not the biggest fan of Eden Hazard.
The Belgian international was widely criticised on Wednesday night after he was seen swapping shirts with Angel di Maria at half-time.
Speaking in Stamford Bridge on ITV after Chelsea were eliminated from the tournament, Roy Keane called Hazard's actions as "shocking".
"I’m afraid to comment. This is bad enough at the end of the game, but at half-time in a big game?"
"What is a player’s mindset? A big game and you’re thinking about swapping shirts at half-time. I wouldn’t bother at the end of the game."
Chelsea boss Guus Hiddink agreed with Keane's comments. After the game he told the media though it was "not a big issue", Hazard shouldn't have swapped jerseys.
After the first leg between the sides last month, Keane also gave out about Hazard's attitude in Paris. The two men will meet at Euro 2016 when Ireland play Belgium in Bordeaux.