The Premier League game between Manchester United and Bournemouth on Sunday was abandoned after two stands at Old Trafford were evacuated before kickoff.
The new arrests came as the injured toll doubled from 59 to 119.
A police source said the charges relate to a fight with a 16-year-old boy near Keane's home.
Manchester United's final Premier League game of the season against Bournemouth, which was abandoned on Sunday after the discovery of a suspect device at Old Trafford, will be played on Tuesday, the League announced in a statement.
Anil Velji leaped into action when the raider burst into his convenience store in Oldham, Greater Manchester.
British police are to investigate an allegation that Manchester United striker Wayne Rooney assaulted a man in a nightclub, a spokesman said on Tuesday.
Fans attending the Liverpool - Man United game would be subjected to rigorous security checks.
Seven recruits and an officer were identified as making racist remarks in The Secret Policeman, a BBC documentary that was made using Tehelka-style techniques.
This follows an undercover television documentary broadcast on Tuesday night.
The United fans, who celebrated the victory at the end of the game with the manager and players, have not been the source of criticism of Solskjaer -- indeed the Norwegian has enjoyed strong backing from supporters who attend games at Old Trafford and those who travel away.
Britain fell silent on Thursday as a minute's silence was held across the country to remember the 22 victims of Monday's concert bombing. The silence, which fell at 11 am, also marked the nation's solidarity with the 119 who were injured in the blast at the Manchester Arena following a concert, as well as others affected by the atrocity. Crowds gathered at well-known sites in the UK, including London's Parliament and Trafalgar Square. Here are some touching glimpses...
European soccer body UEFA opened disciplinary proceedings against Manchester United and Liverpool on Friday after fans clashed and threw objects during a Europa League tie at Old Trafford.
Eyewitnesses reported hearing a loud "bang" from inside the venue.
He was arrested by Swiss authorities for trespassing at the event in July 2015 but later released.
A suspicious package destroyed by a bomb disposal team after prompting the evacuation of Manchester United's stadium on Sunday was a fake device accidentally left behind after a training exercise, police said.
A British fighter jet was on Tuesday scrambled to escort a Qatar Airways plane carrying 282 people to Manchester airport after reports of a possible device on the aircraft emerged, as police arrested a passenger on suspicion of making a hoax bomb threat.
News of all that's transpired on and off the football field
The Ariana Grande's Sunday Manchester benefit gig was bold. And triumphant. She, and several of the world's top musicians, belted out an evening of song with the unstoppable message: Fight terrorism with music.
Tyson Fury has been provoking fury well beyond the ring with his pronouncements on homosexuality, women, fellow athletes and a range of other topics.
British PM Theresa May said the threat level in the country will remain at critical and that 1,000 army troops have been deployed to boost security.
Manchester City midfielder Yaya Toure has said the abuse he suffered on social media is 'a disgrace' and called for world soccer's governing body FIFA to reassess the way they deal with racism.