McKenzie, who was playing for Redditch United against Chesham United on October 15, was charged with and admitted to improper conduct after striking the match referee after he had been sent off.

He was immediately released by Redditch and has now been banned for the best part of three years, as well as being fined £250.

Speaking about the decision, Maurice Armstrong, chairman of the Independent Regulatoery Commission, said: "Any abuse of a referee should be considered seriously and any physical contact against a referee, if proven, should carry with it a considerable sporting sanction.

"It is positive that this type of event does not happen at this level of the game often, but in fact should not be accepted no matter what the level."

The 34-year-old is in his first season at the Stamford Bridge helm after replacing Carlo Ancelotti over the summer.

The former Porto boss has been less than impressed by some decisions against his team, even going so far as calling referees' chief Mike Riley to complain about the performance of the officials in Chelsea's Barclays Premier League defeat at Manchester United. He was also critical of decisions in their draw at Stoke.

Speaking after the defeat at QPR, Villas-Boas said: "The ref was poor, very very poor. And it reflected in the result.

"I spoke to him at the end and I was very aggressive to him.

"I don't care if he's okay or not.

"Everyone can have a bad day, but this was not a bad day for us. It was a good day for us and a bad day for the referee."

QPR won the game 1-0 thanks to a Heidar Helguson penalty which was awarded for a needless David Luiz challenge in the eighth minute.

Foy then controversially sent off Jose Bosingwa for a last-man challenge and was left with no choice but to dismiss Blues striker Didier Drogba for a two-footed lunge.

The referee booked seven more Chelsea players, with the west London club being fined £20,000 after admitting to a charge of failing to ensure their players conducted themselves in an orderly fashion.

Villas-Boas continued in his post-match rant: "A couple of decisions are right, yellow cards for sure, but I think he lost it before and was card happy towards the team.

"I'm not happy with the difference of treatment. I don't think the same treatment was applied.

"Apart from the fourth official, the other three were led by the emotions of the crowd and couldn't deal with a game like this."

The Chelsea manager added: "Three of the games played by Chelsea were influenced by the referee, and this is not Premier League level.

"You have to trust human error, but it's a big pattern for us. Things are not going our way.

"Conspiracy theories can lead to bans and lead to you calling us cry babies, and we're not. But it keeps happening.

"We're showing commitment and strength. Hopefully, things will go our way, referee decisions going our way."