West Bromwich's Nicolas Anelka has shown a damaging lack of judgement by using the "quenelle" gesture and could face an eight-match ban.
Prince William has stepped into the row over racism in football, saying there is "sadly more work to do" to eradicate it from the game.
The Duke of Cambridge has vowed to take Prince George to watch his beloved football team, Aston Villa, at Villa Park in the future.
The League Managers' Association has launched a scathing attack on former Football Association chairman David Bernstein after he claimed club bosses were setting a "terrible example" by their behaviour.
Bernstein's comments were "misguided, unhelpful and inflammatory" and he failed to engage with the organisation during his time at the FA, the LMA said.
Bernstein, who had spoken out after being awarded the CBE in the New Year Honours, said managers were harassing officials and were being too critical of referees after matches.
The LMA said in a statement: "We believe the comments are misguided, and unhelpful. It is important to recognise that managers in professional football contribute significantly to the success of the game both on and off the field.
"Having spent their lives dedicated to the game, they value it, are committed to seeing it continue to grow and to contribute to its future direction.
"It is particularly sad therefore, to find David Bernstein celebrating his CBE by engaging in a megaphone commentary from the sidelines, taking a unilateral swipe at managers, having wholly failed to engage, in any meaningful way, with the LMA and its members during his tenure as FA chairman."
Former footballer Michael Johnson, who was recently appointed to the FA's Inclusion Advisory Board (IAB), has expressed "deep regret" over a TV appearance in which he said homosexuality was "detestable".
"Because of my beliefs, because of the Bible that I read, in the Bible it does state that homosexuality is detestable unto the Lord," he told the BBC's Nicky Campbell in 2012 while refusing to back an anti-homophobia campaign.
In a statement to the Guardian newspaper tonight, Johnson, now 40, said: "I was invited on to the programme in March 2012 to talk about my faith.
"I was not prepared for the question and it is with deep regret that I answered it in the way I did back then. It was wrong and relates to a view I no longer hold."
IAB chair Heather Rabbatts said she accepted Johnson's regret over the comments and acknowledged that "through his own personal journey he has a huge amount to offer to the Inclusion Advisory Board."
Nicolas Anelka has agreed not to perform a controversial goal celebration again which was widely considered as anti-semitic in France, a statement released by his club West Bromwich Albion said.
It said: "The club fully acknowledges that Nicolas’ goal celebration has caused offence in some quarters and has asked Nicolas not to perform the gesture again. Nicolas immediately agreed to adhere to this request."
Manchester City midfielder Samir Nasri has also apologised "for causing any hurt to anyone" after a picture emerged of him appearing to make the quenelle gesture.
He said it had "absolutely nothing to do with being anti-semitic".
Nicolas Anelka has taken to Twitter to defend his controversial goal celebration in a Premier League match yesterday, saying it had nothing to do with religion and was not racist.
West Brom striker Anelka, who made the "quenelle" gesture after scoring against West Ham, tweeted: "I am neither racist nor anti-Semitic."
Signification de quenelle: anti-système. Je ne sais pas ce que le mot religion vient faire dans cette histoire !
He added: "The meaning of quenelle is anti-system. I do not know what religion has to do with this story.
"With regard to the ministers who give their own interpretations of my quenelle, they are the ones that create confusion and controversy without knowing what it really means. I ask people not to be duped by the media."
The Football Association are investigating the gesture, which is considered by some in France as being anti-Semitic.
West Bromwich player Nicolas Anelka has posted a picture of President Obama, rapper Jay Z, his singer wife Beyonce and an unidentified man making a gesture, only hours after he did a controversial goal celebration known in France as 'la quenelle'.
France's Minister for Sport Valerie Fourneyron hit out at West Bromwich player Nicolas Anelka for making a gesture that has associations with anti-semitism in France. Writing on Twitter, she said:
"Anelka's gesture is a shocking and disgusting provocation. Anti-semitism or incitement to hatred has no place on the football field."
Le geste d'Anelka est une provocation choquante, écoeurante. Pas de place pour antisémitisme et incitation à la haine sur terrain de foot
France's interior minister Manuel Valls said his department are looking for ways to ban comedian Dieudonne M'bala M'bala for repeatedly making the gesture Jewish rights groups have branded the "Nazi salute in reverse."
Dieudonne has been fined several times for hate speech, but he says the gesture stands for anti-Zionism and anti-establishment. In a statement, Valls said:
Dieudonne M’bala M’bala doesn’t seem to recognize any limits any more. From one comment to the next, as he has shown in several television shows, he attacks the memory of Holocaust victims in an obvious and unbearable way.
Nicholas Anelka is being investigated by the FA after he made a gesture widely viewed as anti-semitic in France during goal celebrations in Upton Park today.
The gesture involves pointing one straightened arm downward whilst touching that arm's shoulder with the opposite hand, and has been condemned by Jewish groups as a "Nazi salute in reverse."
The gesture was invented by Anelka's friend and controversial French comedian Dieudonne.
It is defended as being anti-establishment but authorities are considering banning it in France and French Interior Minister Manuel Valls said he is considering banning performances by the comedian altogether.
The Football Association says it is investigating claims that West Bromwich player Nicolas Anelka made an anti-Semitic gesture during the Baggies' 3-3 draw at West Ham today.
Kick It Out, the campaign against racism in football said it was also aware of the case.
"The campaign is in contact with partners in England and France regarding this matter and has offered its support to The Football Association in any forthcoming investigation," a spokesperson for the organisation said.