He suffered the problem during a game against Wigan earlier this season, with talkSPORT confirming that he was ruled out for around a year following surgery to correct the problem.
The good news is that he’s mentally in good spirits and is progressing well, already doing work on the injury by himself.
“Definitely, mentally it’s going to be a big challenge for me. I just like to keep positive and have positive people around me – If I stay positive and my head is right, this injury will go fast,” said the striker.
“At the start I had two weeks of lying in bed and doing whatever I wanted – Four weeks later I was doing bending and slowly just doing a little bit more – Now I’m at about 90 degrees (bend) and doing it myself.”
So long as Assombalonga doesn’t let himself get down because of the injury, he can focus on making small steps of progress and stay determined as he looks to get back into action next season.
It’s going to be more difficult for him if he lets frustrations boil over, which would be understandable because he was Forest’s best attacking player before the problem developed.
The 90 degree bend he talks about means he’s able to walk unaided and that will help him build muscle strength back up in the affected leg, which can lead to focus on the next stage of his recovery.
Until he can return, Forest manager Dougie Freedman has to find solutions and needs to work hard in the transfer market this summer to draft in some good attacking options to fill the void.