Toulon pair Martin Castrogiovanni and Delon Armitage are under investigation by the ECPR following a fiery game at Welford Road.
The Italian prop launched a scathing, expletive-laden tirade at Leicester coach Richard Cockerill, who he accused of lying over Castrogiovanni’s departure from Leicester after a seven-year spell.
The competition’s governing body are looking into the incident, while Armitage is under investigation for allegations insults aimed at the crowd during the game.
Castrogiovanni, who left the Tigers two years ago, had earlier apologised for the language he’d used in his rant, although stuck to his guns about the message he was putting across.
“First of all I want to make amends for my profanity and apologise to everyone feeling offended by what I said. I’m sorry if my words have created misunderstandings. It also was not my intention to offend anyone, but only to point out my position after some statements,” he said.
“I hate lies and hypocrisy. I have always been a loyal person and I have been loyal to all the people I worked with. I felt to be attacked but moreover Toulon was attacked and my feelings were I had to protect my team from yet another provocation.
“I have always loved the Tigers. I grew up there and spent seven wonderful years, unique. Leicester supporters have made me feel at home, a beautiful piece of my heart is still there and when I went away it was not because of my will. I love rugby and the only thing I want to do is play, so I went to France, at Toulon, one of the best teams in the world.”
Tigers travel to the South of France this week for a table-topping clash at the Stade F