The 18-year-old was missing for the back end of last season after the horrific injury.
However, he has found his way back to fitness and is already shining for the first team under Frank Lampard with three assists and a goal in four matches.
He told Sky Sports News: "It's an amazing feeling.
"I was out for three to four months and it was crazy to even get the injury in the first place. It's something I had to deal with mentally because I'd never experienced an injury like that before.
"I'm really delighted with the way I've come back. I didn't expect to get this many assists and to contribute with a goal as well. Hopefully I'll keep improving and adding goals to my game."