Expect Green to return and play at a high level at the start of the 2020 season. However, his extended recovery timeline from ankle surgery suggests that the injury was high-grade and may have long-term impact, so we are not eager to acquire him in dynasty leagues.
2019 - Left ankle ligament injury (likely high ankle sprain), treated with surgery (16 games missed)
2018 - Right toe sprain (injured, then re-aggravated; missed 7 games total)
2016 - Hamstring tear (missed 6 games)
2014 - Concussion (1 game missed); Right toe sprain (missed 3 games)
2011 - knee sprain (1 game missed)
2019 - 0/16
2018 - 9/16
2017 - 16/16
2016 - 10/16
2015 - 16/16
2014 - 13/16
2013 - 16/16
2012 - 16/16
2011 - 15/16
Green is expected to start the season healthy and near full strength, having had an entire year to recover from ankle surgery. We will be seeing him for the first time since mid-2018, but reports are generally positive about his recovery progress so far.
Data from professional athletes suggests that his extended time missed during recovery from his July 2019 ankle surgery means that he had a high-grade injury which may have also involved his ankle cartilage. This should be treatable in the short-term, but lower extremity cartilage injuries often mean poor long-term prognoses for elite athletes. As a result we have only mildly elevated concerns for 2020, but would not commit to Green long-term.
Image Source: Navin75, CC-BY-SA-2.0