Yankees today announce signing of 2B Brian Roberts to a one-year Major League contract for 2014. — Yankees PR Dept. (@YankeesPR) January 14, 2014
Stacey had this yesterday when the beat guys were reporting it, but it's not officially official until the Yankees say it is and they said it was today. Brian Roberts is now OFFICIALLY a Yankee. He takes A-Rod's roster spot and is currently the starting second baseman.
Insert your best "until he gets hurt" jokes in the comments.