Ferguson, 23, was forced out of the England Knights squad in the autumn with the problem, which has kept him sidelined for 12 weeks.
He is now targeting a return in the friendly game against Wigan for Sean O’Loughlin‘s testimonial on January 19th.
The former Wakefield back-rower told the club’s official website: “I did my first contact session yesterday, and I felt okay. I was a little bit sore, but that’s just what you would expect after just doing rehab work for 12 weeks.
“It is now a case of getting down to some hard work to make sure that I am in contention for the Super League opener against Wigan in four weeks time.”
However, the Scotland international hasn’t ruled out being ready to make a return in the friendly against Castleford on January 13th.
He added; “If I am honest, it is good to be thinking along the terms of when I return, because I will be back a little quicker than originally anticipated. I feel really good and I am looking forward to ripping in over the next couple of weeks”