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Rooney appeared on the UTD Podcast and told the story of smashing a young Morrison's Blackberry while taking part in first-team training.
Former United captain Rooney lost his temper after realising it was an academy player's phone in place of his, but Morrison insists it wasn't his fault.
The ADO Den Haag midfielder joked on Twitter: "@rioferdy5 Put my phone on charge for me, i had a U18s game on the way out I Gave him my phone..
"90 minutes later.. phone smashed to tiny pieces @WayneRooney it's all Rio's fault I wouldn't come in and take your phone off charge
"I'm sure @GNev2 played some part!"
Rooney had explained: "I remember I smashed his [Morrison's] phone up at one point.
"He came in the first-team dressing room when he was in the reserves. My phone was on charge and he took it off and put his on.
'It was when we had the old BlackBerries and it had the email address on the front. I thought it was one of the other lads so when I saw it was one of the reserve players I just smashed the phone up!
Morrison was once regarded as United's top talent, but off-field issues saw him never fulfil that potential.
Rooney went on to add how disappointed he was seeing the 27-year-old slowly fade out of the limelight.
"With the younger players it's been well documented about Ravel Morrison," the interim Derby County boss continued.
"He was brilliant in training and then he had a few issues and it halted his career.
"We all thought he was going to be top-level. Everyone could see those issues were going to be there. I spoke to him. Gary Neville was trying to get him to live with him. There were different things people tried."
Rooney has previously said Morrison showed more in training than Paul Pogba, who left United in 2012 only to re-sign for a then world record fee of £89 million in 2016.
"I remember watching Ravel Morrison thinking he had everything required for a player in his position. He was brilliant. He was confident," Rooney wrote in his Sunday Times column.
"He nutmegged Nemanja Vidic three times in the space of a minute in one training game. But he struggled with lifestyle and his environment which was sad for him - because I saw Paul Pogba come through, Jesse Lingard, all these players and Ravel was better than any of them by a country mile."
Featured Image Credit: PA Images
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