David Beckham's daughter brushes her teeth in a Manchester United kit.

Harper Beckham brushing her teeth (c) Instagram/ David Beckham

Harper Beckham brushing her teeth (c) Instagram/ David Beckham

The retired soccer star - who played for the Premier League club for 11 years - has posted an adorable picture of his four-year-old Harper wearing the latest replica shirt and shorts of his former club.

She added the caption: "Teeth time a few hours ago and I walked in to the tippy toes and the United strip plus a perfect platt does that get any cuter (sic)"

David - who also has sons Brooklyn, 16, Romeo, 13, and 11-year-old Cruz - shot the snap of Harper up at the sink brushing away and on the back of her United shirt she had the name Beckham and the legendary footballer's United number, seven.

The number is particularly significant for Harper as it is the same name as the little one's middle name.

The 40-year-old hunk previously revealed he and Victoria chose Harper's middle name because he'd done so well playing in the number for England - who he captained - and United, but also because it "symbolises spiritual perfection".

He previously said: "Seven you know, a lot of people have assumed its just because of my shirt number that I wore for many years and part of it is because I had so much luck around wearing that number, wearing it for England, wearing it for Manchester United.

"It was such an influential number throughout my career and a lucky number... but that wasn't the main reason.

"The other reasons behind Seven was because it symbolises spiritual perfection, the Seven Wonders Of The World, seven colours of the rainbow and in many cultures around the world it's regarded as a lucky number.

"So we love the name, we love Harper Seven. We're very proud of having her in our lives and in our family and it's an amazing time for our family right now."