Jadon Sancho has signed a new Borussia Dortmund contract worth about £190,000-per-week, including bonuses.

The 19-year-old has started the new season on fire with two goals and two assists in three matches.

That’s very much picking up where he left off after he registered 12 goals and 17 assists in 34 league matches last season for Dortmund.

No wonder the German club are keen to tie him down to a lucrative new contract.

Manchester City must be kicking themselves for letting the winger leave for just £8 million two years ago.

Sancho spent eight years at Watford from the age of seven before he joined City.

However, the Citizens allowed him to leave after just two years.

If that’s not baffling enough, a video has emerged that shows just how good Sancho actually was when playing for City’s academy.

The video, which was posted on YouTube earlier this month, shows Sancho running riot against fellow youth sides.

Take a look:

No wonder Sancho was seeking first-team football based on those performances.

But that was something City and Pep Guardiola simply couldn’t offer so Sancho happily left for Dortmund - a decision that has been fully vindicated.

But Sancho is simply too talented to remain at Dortmund for the rest of his career.

Even Dortmund chief executive Hans-Joachim Watzke knows that.

"There aren't many 19-year-olds with such a potential," he said.

"He is also not a player from the region or one who would have any connection to it.

When you have a player like Jadon Sancho, you must reassess the situation every single year. Everything else would not be honest.

"If a foreign player is not convinced that the club is right for him at the exact time, it just does not make any sense [to keep him]."