When a professional sports team signs a player to a contract, they will look for a variety of ways to protect themselves. The most common for NFL teams is non-guaranteed money, but also weight clauses and in-season roster bonuses. However, they can go beyond that to protect themselves from a player doing something to risk their health off the field.

Boston Globe NFL columnist Ben Volin recently discussed Rob Gronkowski’s contract with the New England Patriots. The deal includes language preventing Gronk from “engaging in any activity other than football which may involve a significant risk of personal injury.” However, it does not list out specific activities.

The San Francisco 49ers are not quite so vague. Voling got a look at contracts for Jimmy Garoppolo and Richard Sherman, and they including prohibitions on the following activities:

[S]kydiving, hang gliding, rock or mountain climbing, racing of any kind including as a driver or a passenger, motorcycling, use of any off-road or all-terrain vehicle, professional wrestling, boxing, firearms, scuba diving, jet skiing, surfing, bungee jumping, diving, and snow or water skiing.

It’s not surprising the 49ers would protect themselves, but some of the activities seem a bit much. But hey, when you think you’ve found your franchise quarterback or a cornerback who could help build their secondary, you don’t want to risk injury off the field.

Hope you weren’t looking to see Jimmy G or Sherman in the main event at Wrestlemania next year.