According to footballer Shaun Derry, his first medical was as basic as him bending over to touch his toes to check the stability in his knees, but, as the knowledge of sports science has evolved, the medical now involves MRI scans, and, according to former Nottingham Forest physiotherapist Gary Fleming, ECGs are also performed to check for any problems with the heart. The person performing the medical will check all the major joints, ligaments and the player's sight. A player can fail a medical simply by being unfit, as was the case when Inter Milan tried to sign John Carew.