Jack Clarke may have failed to make a huge impact at Tottenham Hotspur, but the Sunderland winger could be back playing in London soon. There are three London clubs reportedly interested in Clarke, who is now valued at £20 million by his club Sunderland. Jack Clarke has become better since Tottenham Hotspur exitTottenham signed Clarke from Leeds United in the summer of 2019 for an initial transfer fee of £8.5 million (Sky Sports). The winger struggled to make an impact Spurs, who sold him to Sunderland for £750,000 in 2022 (Football.London). Clarke has gone from strength to strength at Sunderl…