https://www.youtube.com/watch?v=DNelWj9xFdM&pp=ygUWamVycnkgcmljZSAxOTk3IGluanVyeQ%3D%3D
Aaron Rodgers is going through something similar to this. Suffered a devastating Achilles injury that would take several months to heal and is gonna beat every single odds and try to come back very late into the season.
Rice tore his ACL in week 1 and returned in Week 16 and managed to catch a TD pass but broke the patella in the same knee and missed the rest of the season/playoffs as a result.
Biggest issue with ACL recovery is quadriceps strengthening, because the knee is immobilized for so long and atrophies. The patella is embedded within the quadriceps tendon. The second injury was definitely a consequence of the first.