Everton academy coach and former player Kevin Sheedy has put the boot into Manchester United manager David Moyes.
Sheedy has been on the Toffees' coaching staff since 2006 and is currently in charge of the under-18s, so has first-hand experience of working under Moyes before he moved to Old Trafford last summer.
However, he was far from complimentary about his old boss.
"All of you out there Moyes was never interested in our youth team or players," Sheedy, who played 314 times for Everton from 1982 to 1992, tweeted after the Red Devils' 3-0 defeat to Liverpool on Sunday.
"In my 7 years moyes showed no intereset (sic) in our youth team."
Asked on the social media site whether that had "done his head in," Sheedy replied: "Yep, he did."
It is understood when Everton became aware of the tweets they asked Sheedy to remove them and they were subsequently deleted.
However, his criticism of Moyes' tactics – "Punt the ball up to Fellaini. Great viewing," – in Sunday's defeat remained.
Meanwhile, Juan Mata believes his team-mates will draw on the club's traditional winning spirit to get them through this week's crucial Champions League last-16 tie against Olympiacos.
And the Spaniard insists the players will give everything to forget the crushing 3-0 defeat at home to Liverpool, starting tomorrow when the Greek side arrive at Old Trafford holding a 2-0 lead from the first leg.
Mata, who is ineligible to face Olympiacos having featured in the competition for Chelsea prior to his £38m January transfer, was in bullish mood.
"We know the history of this club and its achievements, based on a winning spirit," he said.
"That is what we need to beat Olympiacos and get through in the Champions League.
"The storm will pass and the sun will rise again. I have no doubt. Besides, no one said this would be easy, but this is football. It gives you fantastic moments, but also very hard times you have to cope with, when you have to show pride and professionalism until the end."