Croft sustained a neck injury while playing for the Tigers in April and although he has gone up a notch with his rehabilitation programme he has still not returned to full training.
England face Fiji on November 10 in their first Test of the season but coach Stuart Lancaster has ruled Croft out of a place in his squad.
The 26-year-old admitted that playing for the Tigers is his main priority and that he was not thinking of an international return at the moment.
"I'm on track of where I'd hope to be at this time," he told the Leicester Mercury.
"We are still a little way off but it is just part of being a rugby player. It is frustrating at the moment watching the boys on the pitch, gearing towards a game at the end of each week and I'm stuck at the gym.
"It would be nice to get back fit and actually have something to train for at the end of the week.
"At the moment I am basically avoiding contact as much as possible.
"I missed the summer tour and that was a very frustrating time in my career but there are silver linings you can take.
"It could be a lot worse and it gives me the chance to get my body back in some sort of decent nick and hit the ground running when I come back.
"England is not a concern of mine at the moment, my concern is getting back for Leicester and back playing well."
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