Tottenham Hotspur's owners, the Lewis family, are set to pump more money into the club ahead of a big summer. They are also raising £200million by selling some of their vast art collection. The owners are looking to inject more money into the club to back new head coach Roberto De Zerbi in the transfer market this summer. This comes at a time when they are looking to raise £200million themselves by selling some of their art collection. The sale is set to be the most valuable single-owner collection ever offered at auction in Europe, bringing together defining masterpieces of modern figurative painting. The collection includes works by Gustav Klimt, Egon Schiele, and Amedeo Modigliani, among others. The sale is set to take place from June 10-23 in a specially-designed exhibition in London. The Lewis family has stated that they are not selling the club, but rather investing in it. They have laid out their plans to meet their ambition of recapturing the spirit of the club and bringing back the excitement, the fearlessness, and the bold football they have always felt defined them. The club is set to be busy this summer with exits and arrivals aplenty as they seek to prevent another season of disappointment. Tottenham have already signed Andy Robertson on a free transfer, and are in talks for Brighton's £70million-rated defender Jan Paul van Hecke and Manchester City winger Savinho, who is valued up to £60million.