When it comes to opt-out clauses, the New York Yankees tend to opt in.
They aren't always happy about it. They don't always do it right away. But when Alex Rodriguez opted out of his deal during the 2007 World Series, the Yankees turned around and gave him a bigger contract they would come to regret.
When CC Sabathia was ready to opt out of his contract four years later, the Yankees added what amounted to two years and $50 million, another deal they wouldn't mind having back.
So now we come to Masahiro Tanaka.