Sir Alex Ferguson has banned two newspapers from press conferences until they apologise for fuelling rumours about Rooney's departure.
The Manchester United boss said speculation that the striker could be on the move was "nonsense."
He confirmed Rooney would be staying put at Old Trafford next season and said he will be part of Sunday's FA cup tie with Chelsea.
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Prime Minister Theresa May announced the decision from Downing Street.
In her message Theresa May praised the "inspirational bravery" and "unbreakable spirit" of Mancunians in the wake of the blast.
ITV News has obtained exclusive footage of the moment armed police raided a house believed to be linked to the Manchester suicide bomber.