Heung-min Son has admitted he was ‘very sad’ after Tottenham Hotspur crashed out of the FA Cup last month. Spurs were knocked out in the fourth round by current holders Manchester City on January 26. Ange Postecoglou’s men were largely outclassed on the night and a late Nathan Ake header sent Pep Guardiola’s men through. Of course, Tottenham were without a few key players on the night, including Heung-min Son, Pape Matar Sarr and Yves Bissouma. All three players were on international duty, with Son at the Asian Cup while Bissouma and Sarr were participating in AFCON 2024. Now, Son has admitted…