Greenberg was taking care of husband or wife of Rangers Baseball Express, LLC, which on August 5, 2010, gained courtroom acceptance to purchase the Texas Rangers, a Major League Baseball staff, from Tom Hicks and Hicks Sports Group. Rangers Baseball Express, led by Greenberg and which includes former baseball terrific Nolan Ryan, received an auction to order the Texas Rangers on August 5, 2010, after hours of courtroom bidding.