It is disappointing that after a great game and advert for the Premier League that we are discussing this issue.
We will work with the clubs and authorities to identify those responsible and support the strongest sanctions available, including life bans.
We condemn any such acts and it is simply unacceptable that any player is exposed to injury in this way. To witness Rio Ferdinand leaving the field with a cut above his eye to receive treatment is appalling.
More top news
A baby kangaroo had a narrow escape when a large eagle swooped down and grabbed him in his talons, carrying him away.
Voters in part of London have reportedly been turned away from polling booths due to "problems with the lists".
A fertility app is to be given free to one million Brazilian women in a bid to halt the spread of the Zika virus.