Sox get medical language inserted into contract...
https://www.mlbtraderumors.com/2018/02/jd-martinez-redsox-contract-medical-protection-three-opt-outs.html
....Specifically, Drellich further reports, the Red Sox can convert both years four and five of the contract into mutual options, pursuant to the newly drawn up language. In essence, then, the Sox have negotiated their own means of walking away from the final two years of the contract in the event that Martinez’s foot proves to be a chronic condition.
Per Drellich, should Martinez spend 60 consecutive days on the DL in year three of the contract (2020) with an injury related to his prior Lisfranc injury, the fourth year can be converted into a mutual option. Boston could also convert the fourth year to a mutual option should an injury pertaining to the prior Lisfranc issue prompt Martinez miss a combined 120 days between the second and third years of the deal (2019-20), with at least 10 of those days coming in year three. (The Boston Globe’s Nick Cafardo first tweeted that the team could render the fourth year a mutual option.)
Boston is similarly protected in the fifth season of the contract. If an injury pertaining to his previous Lisfranc issue causes Martinez to miss 60 consecutive days in the fourth year of the deal (2021) or a combined 120 days in 2020-21 (with at least 10 in year four), then the 2022 season can be converted to a mutual option. All determinations about whether a new Lisfranc injury for Martinez is related to the 2017 injury would be made by a panel of three doctors.
No wonder it took a week to finalize the deal!