Myles Lewis-Skelly has committed his future to Arsenal by signing a new long-term contract at the Emirates Stadium.
Sky Sports News understands it is a five-year contract, taking Lewis-Skelly up to the summer of 2030.
The 18-year-old academy product proved a revelation at left-back last term after forcing his way into Mikel Arteta's team in December.
In total, he made 39 appearances, scoring his first goal for the club in Arsenal's 5-1 win over Manchester City in February. He also became the youngest player to score on his England debut when he found the net in their 2-0 win over Albania in March.
Lewis-Skelly came through Arsenal's youth ranks as a central midfielder but has been converted into a left-back by Arteta, usurping Riccardo Calafiori and others in the manager's pecking order.
His performances were recognised with a nomination for the PFA Young Player of the Year award, with fellow academy graduate Ethan Nwaneri also among the six players on the shortlist.
The agreement over Lewis-Skelly's new contract follows news of an extension for central defender Gabriel Magalhaes, who has committed until 2029. The club also hope to tie Nwaneri to a new deal.
Analysis: New deal richly deserved
Lewis-Skelly's new contract is well-deserved following an outstanding breakthrough season. His impact was all the more impressive given he was playing in a new position. He finished the campaign as Arteta's first-choice left-back, aged 18, having never previously played there.
The teenager appears to hold the same status for England under Tuchel having impressed in the March fixtures against Albania and Latvia, underlining his knack for seizing his chances. Lewis-Skelly has strength of character to match his brilliant talent.
He has excelled in and out of possession for Arsenal, proving tough to beat in one-on-ones - he was only dribbled past once in 1,370 Premier League minutes last term, according to Opta - and consistently passing with precision and purpose even under pressure.
His passing accuracy rate of 93.55 per cent put him seventh among all Premier League players last season and he ranked similarly highly in terms of duel success.
There were moments of over-exuberance too, of course, most notably in the form of two red cards, one of which was overturned, but Lewis-Skelly's value to his managers is clear and it is easy to understand why. An outstanding young talent, his new deal reflects his growing status.