The 21-year-old, who has been sidelined since January, is hoping his next appearance for the promotion-chasing Hornets will come in the Premier League.
“It’s going well,” he told the club website. “Tomorrow (Thursday) I’m hopefully going to be doing a little bit of running on the pitches, which is the first little bit of good news I’ve had.
“From tomorrow it’s a good chance for me to kick on and catch up with some of the fitness work I’ve been missing out on. Even though it’ll be pre-season by the time I’m back, I’ll be looking forward to it.
“It’ll be great to eventually kick a ball again and get back training.
“When I knew I would be out for the rest of the season, I set my mind to next season.
“If that means Watford will be in the Premier League, even better. We would be playing against the best teams, the best players, and to have the opportunity to play in that team would be great.”