The 18-year-old, whose contract was due to expire, has broken into the Ajax first team this season, scoring two goals and recording an assist in just 480 minutes of football.
A performance which made everyone take notice was his outing in the 6-1 win against Den Haag which earned him a FootballCritic rating of 8.9
With his contract counting down, however, several elite clubs around Europe started to have their Interest piqued, with super agent Mino Raiola advertising his services.
But, Ajax will be able to enjoy his development for a bit longer as they announced this week that he had signed until 2023, and for Gravenberch there was never any doubt that he would pen the new deal.
“I have often been asked about it in recent months, but I have always told the people around me that I wanted to stay here,” he told the official Ajax website.
“I have been with Ajax since 2010. They picked me up as a little boy and I have been here for 10 seasons now. Then you don't want to just leave. ”