cap the fee
マーくん、メジャー挑戦の意思を球団に伝え、あとは球団の回答待ちです。
標題の表現はcapの基本義（動詞）「帽子をかぶせる」から転じた言い方で、「（移籍金に）上限をもうける、制限する」という意味ですね。price-cap「プライス・キャップ方式、価格上限規制方式」を思い浮かべた人もいることでしょう。（UG）
Masahiro Tanaka eyes MLB
TOKYO -- Pitcher Masahiro Tanaka wants to move to Major League Baseball next season, but his Japanese team doesn't want to let him go.
MLB and Nippon Professional Baseball have finalized a new posting system that caps the fee for players at $20 million, much less than what Japanese teams previously got for players such as pitchers Yu Darvish and Daisuke Matsuzaka.
