I remember watching sky sports news and seeing John Hartson walking around the ibrox pitch after clubs agreeing a transfer and him agreeing personal terms with rangers. My heart sank as I knew he would be a goal machine in Scotland... the next day after I came home from work I heard he failed a medical at rangers and the deal was off due to a dodgy knee and weight issues... Martin O'Neill was already on the ball and instructed the Celtic board to sign him on the same terms as rangers had agreed and to bypass the medical "As Hartson would score 20 a season with one leg" that's what he said and the rest is history....