Ryan Babel could be in trouble over his Twitter rant, with the FA set to launch disciplinary action.

Reds winger could be in trouble for ref blast

Investigation

Ryan Babel could be in trouble over hisrant, with the FA set to launch disciplinary action. The Liverpool winger cut a frustrated figure following the Reds' 1-0 defeat to arch-rivals Manchester United in the FA Cup third round on Sunday. With the tie having been settled by a controversial penalty, won by Dimitar Berbatov following a first-minute challenge from Daniel Agger, the match officials at Old Trafford have come in for criticism. Referee Howard Webb also dismissed Liverpool skipper Steven Gerrard for a lunging challenge on Michael Carrick, further infuriating the red half of Merseyside. After the game Babel aired his displeasure on, writing: "And they call him one of the best referees? That's a joke."The Dutchman also posted a mocked-up photo of Webb wearing a Manchester United shirt. His actions have not gone down well with the authorities, with the FA confirming that they are to look into the issue and will rule on whether punishment is necessary. "We will definitely look into this matter," said an FA spokesman. Babel has since apologised for his outburst, saying: "My apology if they take my posted pic seriously. This is just an emotional reaction after losing an important game. "Sorry Howard Webb."