A few days ago, the New York Yankees signed Masahiro Tanaka to a $155 million contract. As Bryan Hoch of MLB.com notes, this is the fifth-highest salary for a pitcher in Major League history. But the Tanaka contract is different from the top four on the list. The top four contracts went to pitchers who were already playing Major League Baseball. Tanaka played last season for the Rakuten Golden Eagles in Japan’s Nippon Professional Baseball league. And while his 24-0 record – and 1.27 ERA – helped the Golden Eagles win the Japan Series title, we do not know how he will fare against MLB hitters. Despite this uncertainty, there is still a sense that this signing illustrates that the Yankees have an unfair advantage.