Kieran Trippier provides theory on what caused Dele Alli's dramatic fall from grace

Kieran Trippier believes Dele Alli's dramatic fall from grace can be traced back to the moment Mauricio Pochettino left Tottenham.

For years under the Argentine, Alli was one of Spurs' most influential players, one of the first names on the team sheet, and a man who had attracted serious attention from Manchester United boss Sir Alex Ferguson around the time of his retirement.

But in 2019 Pochettino left Tottenham after narrowly missing out on winning the club a first Champions League against Liverpool, and under the stewardship of new boss Jose Mourinho, Alli's stock started to fall at an alarming rate.