He had a good season however he missed a good portion of 2015 and a couple games in 2016.... Whether it was the shoulder or not we might never know. But they came out last year and said Luck has had shoulder problems for the last 4 seasons. We will never know exactly how serious the organization thought it was but I think they suspected something was up and played him through a lot of injury. Luck came out and said himself he had chronic shoulder pain for a good portion of his career in Indy and it finally caught up to him in 2017 when he missed the season after the surgery. Which goes back to, yes it does happen. If sale is playing through an injury but says he is good enough to play the organization and coaching staff might let him. That is exactly what happened to Luck. Sometimes it's not always on the coach and training staff as maybe they x ray it and look at it, and decide it's not serious enough to shut the player down. But in my opinion with Luck that is not what happened. I think he played through a lot of pain that he shouldn't have.