 In the January 2006 transfer window , he joined Grimsby Town on a two @-@ year deal , three years after they first expressed an interest in signing him . He made his debut against former club Peterborough United in League Two , on 28 January 2006 in a 2 – 1 home defeat , and scored his first and what turned out to be only goal for the club against Mansfield on 14 February 2006 . On 26 April 2006 , Woodhouse said he planned to retire from football at the end of the 2005 – 06 season and embark on a career as a professional boxer . He made 16 appearances in League Two , helping them to finish fourth place , reaching the play @-@ offs . Woodhouse played in both of Grimsby 's play @-@ off semi @-@ final victories over Lincoln City , setting up the only goal of the game in the first leg . He played his last Football League game in the play @-@ off final at the Millennium Stadium on 28 May 2006 . Grimsby were defeated 1 – 0 in the final by Cheltenham Town . Woodhouse gave away a penalty in the 70th minute that was saved by goalkeeper Steve <unk> . 
