Frank Thomas is a similar case. He's a guy who never lost the power, but the average went into the shitter once his health did. In his age 33 season, he had only 60 or so ABs. And over the next 7 seasons, he was only able to DH for over 500ABs through 3 of them. Before his age 33 season, he only had one yr where his BA was below .300. After the age 33 season, his highest BA was .277 and the majority sat in the .260 range.
Listen man, I dont think Ortiz is gonna fall off a cliff here and be a mendoza line hitter with no eye or power. Even in his diminished form last yr his OPS was .876. I just have a high suspicion that he might not get back to the 1.000+ OPS seasons of his prime. Mostly because his wrist looked like problem #1 last yr. I could not believe the ease with which he was handled in the postseason. It used to be anything hard up and in could get by him if he didnt foul it off, but miss and you're dead. Last postseason, though anything hard got by him. His bat was incredibly slow, therefore leading to the conclusion on here that he needed surgery. He didnt. It was structurally sound, just inflamed. Not sure how that will pertain to this yr, but with the knee that will be balky at increasing intervals and a mysterious wrist injury that turned him into a slider speed bat hitter I do not expect to see him putting up vintage numbers.