Rooney revealed this in his socials with a picture showed 11-year-old Kai signing a deal with a 'Rooney 10' shirt next to him.
"Proud day. Kai signing for Man Utd [sic]. Keep up the hard work son," said Wayne, with wife Colleen also in the photo.
Proud day. Kai signing for @ManUtd. Keep up the hard work son ❤️ pic.twitter.com/tTYuUZj7yn
— Wayne Rooney (@WayneRooney) December 17, 2020
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