Juventus have bought Ghana's Kwadwo Asamoah outright on a four-year deal from Italian rivals Udinese, bringing to end a co-ownership deal.The Italian champions will pay Udinese a total of US$12.05 million over the next three financial years for himThe 24-year-old played 27 games at Juventus the last season scoring twice."Juventus announces that it has terminated the current co-ownership agreement with Udinese concerning the registration rights of Kwadwo Asamoah," the club announced on their official website.Juventus have also extended co-ownership deals for Mauricio Isla and Cristian Pasquato with Udinese until next June.