Leeds United youngster Jack Clarke has penned his first professional contract with the club.

The young striker, who has been prolific at youth level, puts pen to paper on a professional contract on his 17th birthday.

Clarke has been scoring goals for fun this season with nine strikes in seven starts for the Leeds under-18 side.

The talented teenager has signed a three and a half year deal at Leeds United, keeping him at the club until 2021 amid interest from a number of Premier League outfits.

The Whites rank him very highly and the 17-year-old has already been training with the first team with a view to possibly staking a claim for a place in the senior squad soon.

Leeds fans flocked to Twitter to send their well wishes and messages of congratulations to Jack Clarke after he penned his professional deal.

Here are how Leeds United fans reacted to this news on Twitter after the player announced it.