Babel came on as a 60th-minute substitute against Manchester United
Liverpool have confirmed Ryan Babel has accepted a charge of improper conduct from the Football Association over a Twitter post concerning Howard Webb.
The Dutch forward linked to a mocked-up picture of referee Webb in a Manchester United shirt after Liverpool had lost 1-0 at Old Trafford in the FA Cup.
Babel has requested a personal hearing which will take place on Monday.
Figures within the game have defended Babel over his use of the popular social networking site.
The latest to do so is Blackpool manager Ian Holloway, who commented on Thursday: "I thought it was funny - I thought the ref looked really cool in a Man United shirt to be honest!"
"I saw him in the toilet at the match I went to the other night at Stockport. I said 'come on, what sort of game did you have against Man United? Was that a sending off and was that a penalty?'
"We had a bit of a laugh about it, but to pick on young Ryan Babel for that - how can you fine him for that? It's rubbish."
Holloway's team heaped further misery on Liverpool and their supporters with a 2-1 Premier League win over the Reds on Wednesday at Bloomfield Road.
On Tuesday, Gordon Taylor, head of the Professional Footballers' Association, said the FA had been "too precious" in its reaction to Babel's tweet. "Where's our sense of humour gone in our game? He's apologised, let's move on," added Taylor.
In addition to posting a link to the doctored picture of Webb, Babel wrote: "And they call him one of the best referees. That's a joke." He subsequently removed the link and wrote an apology on Twitter.
The Dutchman has more than 166,000 other Twitter users following his updates and his messages - and the offending image was subsequently reproduced by some media outlets.
Ryan Giggs scored the game's only goal from a penalty awarded by Webb for Daniel Agger's challenge on Dimitar Berbatov inside the first minute. Webb later sent off Steven Gerrard after 32 minutes for a challenge on Michael Carrick.
Liverpool manager Kenny Dalglish labelled the penalty decision
"a joke"
and also disagreed with the red card for his captain.
Babel later wrote on Twitter: "My apology if they take my posted picture seriously. This is just an emotional reaction after losing an important game. Sorry Howard Webb."
He then joked about spending a spell in "Twitter jail" and his previously prolific posts stopped on Sunday evening.
It is not the first time that a Liverpool member of staff has been drawn into controversy through their use of the website.
Bookmark with:
What are these?