Championship club Millwall have announced the signing of Nigeria international Danny Shittu on a one-year contract. The central defender joins the club as a free agent.<br /><br />The out of favor Super Eagle player said on his official Twitter page : ''Just signed for Millwall FC which I'm very happy about. Will be putting out a statement soon......''<br /><br />Danny Shittu is eligible for Tuesday's Carling Cup tie with Crawley Town at The Den. <br /><br />Millwall is the 31-year-old's sixth club in England. He previously played for Charlton Athletic, Bolton, QPR, Watford and Blackpool.<br /><br />