MAURICIO POCHETTINO is at the centre of a tug of war between Manchester United and Paris Saint-Germain. The Tottenham boss appears on the wanted list of both clubs in what could become a managerial merry-go-round this summer. PSG are understood to have told their Spanish head coach Unai Emery that his job is under threat if he doesn't reach at least the semi-finals of the Champions League. Emery is already believed to have fallen out with world record signing Neymar and the Basque coach could be out of a job even if he brings success to the French capital.