Source:NY Yankees
http://newyork.yankees.mlb.com/news/article.jsp?ymd=20130728&content_id=55044334¬ebook_id=55045830&vkey=notebook_nyy&c_id=nyy
At approximately 11:15 a.m. ET on Sunday, Hideki Matsui signed a one-day contract with the Yankees. One hour and 40 minutes later, the former star outfielder announced his retirement.Matsui signed his voluntary retirement papers in a pregame ceremony behind home plate, officially retiring as a member of the Yankees as the Yankee Stadium crowd stood and applauded.