David Sommeil of Manchester City is expected to be charged today with violent conduct for his challenge on Tottenham's Lee Yong-pyo during Spurs' 2-0 win at the City of Manchester Stadium on Wednesday night. Sommeil faces a three-match ban as a result of a studs-up tackle which resulted in Lee being carried off on a stretcher with a damaged knee.

It was branded "horrific" by the Tottenham manager, Martin Jol, but went undetected by the referee, Alan Wiley.

The FA is to act after being told by Wiley yesterday he missed an offence that warranted a red card. Wiley's submission was in stark contrast to that of his fellow Premiership referee Mark Clattenburg, who effectively took the blame for the escape earlier this week of the Liverpool pair Steven Gerrard and Mohamed Sissoko. Both were accused of stamping but escaped action when Clattenburg confessed the incidents were within his viewing range and conceded he was prepared to learn for the future from video replays.

Meanwhile, the FA has concluded its investigations into comments made last month by the Manchester United manager, Alex Ferguson, and the Chelsea manager, Jose Mourinho, by deciding to take no formal action.

Ferguson appeared to question whether the referee Rob Styles would ever award United a penalty after feeling they should have been given one during their draw with Everton at Old Trafford. Mourinho claimed Wigan's Lee McCulloch was cheating when he went down injured during a 1-0 win for Chelsea at Stamford Bridge.

Both managers were required to explain their comments and have been reminded of their responsibilities.

A similar escape for Arsenal's Arsene Wenger last month, after he took issue with the officials during a defeat by Chelsea, may have made it harder for the FA to act against his rival managers. The FA studied the context and tone of the remarks before ruling out charges.