Options, Waivers and DFA
The three mechanisms that decide whether a club can move a player to the minors, and whether he stays theirs.
What it actually is. A player on the 40 man roster has three option years, and while he has options left the club may send him to the minors freely. Out of options, he must clear waivers first, which means every other club has the chance to claim him. Designated for assignment removes a player from the 40 man roster and starts a seven day clock in which he is traded, claimed, or outrighted to the minors.
What somebody who knows the game gets out of it. Options are the hidden variable behind a very large share of roster decisions and they explain outcomes that look irrational. A reliever with an option can be shuttled between Triple-A and the majors all season to keep fresh arms available, which makes him more useful than a better reliever without one. That is why option status appears in trade discussions and why fans see a good player released while a worse one stays.
The numbers worth knowing. Three option years, each usable for a full season. A player must spend 20 days in the minors for an option year to be used. Waivers take 47 hours.
What people get wrong about it. Designated for assignment is not a release. The player can be traded or claimed, and a veteran with enough service time can refuse an outright assignment and become a free agent while keeping his salary, which is why some DFA moves cost a club real money.
At Little League and travel ball. No equivalent, but this is the machinery behind most of the transaction news a fan reads, and knowing it turns a confusing headline into an understandable one.
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