Evidence for treatments, including rest, however is poor. Recovery can take months and persist over years. It is relatively common with about 14% of athletes currently affected; however research reflects that more than half of athletes with this injury end their careers as a result.
Not a huge surprise seeing how much pain he was in when it happened.
From Wikipedia[0]:
😨
[0] https://en.wikipedia.org/wiki/Patellar_tendinitis
That is a nice description but for us jays fans, no bueno...
I see DeJong playing out for 30 days at least and Bo's bat will be missed.