The Home Office has revealed it is piloting a new drug testing scheme at the club where a man died last weekend.
Nick Bonnie, who was a charity worker, collapsed after taking an unknown substance at the Warehouse Project in Trafford.
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The Duke of Cambridge also laid a wreath to honour the victims before kick-off.
The mother of one of the Manchester attack victims has told of the distressing moment she found her daughter being treated after the attack.
Thousands of people once again gathered to pay tribute to those killed and injured in Monday's attack.