Tottenham Hotspur undersold Kieran Trippier at more than £40million below his apparent market value, based on a certain metric, according to new data published by a UK-based investment company.
London-based Carteret Analytics estimates that the England full-back had an 'intrinsic value' of £61million as he departed Spurs.
However, he was offloaded to Atletico Madrid for only £19.8m midway through July, with Mauricio Pochettino happy to begin the new season with Serge Aurier and Kyle Walker-Peters, alongside nominal centre back Juan Foyth, as his right-back options.
Trippier's intrinsic value was calculated by Carteret Analytics based on his performances for Spurs - the selling club - and the projected impact of his signing on the buying club, Atletico Madrid.
The former Burnley and Manchester City player's age - 28 - was also taken into consideration, Trippier being being considered to be in his 'prime age' of between 26 and 30.
As the BBC explains, the intrinsic value calculated by Carteret Analytics "is essentially the monetary value of the player's contribution to winning football matches and how influential he is to creating and preventing goal-scoring opportunities."
After a strong 2017/18 campaign, in which he took up the mantle at right back at club level from Manchester City-bound Kyle Walker and scored in England's semi-final defeat to Croatia at the World Cup, Trippier endured a more testing campaign last time around.
However, it appears Spurs agreed to his sale at a severe discount to his actual worth - only around a third of his intrinsic value.
After joining Atletico a month ago, Trippier told BBC Sport there were "no excuse for what happened last season," in relation to his form, adding, "I knew my performances weren't up to scratch."
