A climbing expert claims Tim Tszyu has fallen victim to a classic case of "summit fever" following the Australian's latest world-title defeat in the US.
Tszyu is vowing to punch on in "pursuit of greatness", despite calls for the former WBO super-welterweight world champion to put away the gloves for the sake of his welfare.
After being dropped only twice in his first 24 professional fights, Tszyu has been knocked down five times and heavily concussed in two bloody losses to Sebastian Fundora either side of a brutal beat-down from Bakhram Murtazaliev in the past 16 months.
