Each year, the free-agent class is impacted by the performance of players with vesting options (as is the financial future of players with said provisions in their contract). For those unfamiliar with the option, a vesting option is typically (though not always) a club option that can automatically trigger based on the player’s health and/or performance. Meeting pre-determined criteria for games played, innings pitched and plate appearances are the most common ways of triggering a vesting option. Some also require that a player avoid the DL at the end of the season and/or for a certain number of games over the course of the year.