Tottenham Hotspur are chasing Manchester City defender Matija Nastasic, [football] direct news understands. Spurs head coach Tim Sherwood was heavily critical of some of his players following last night’s 4-0 humiliation at the hands of London rivals Chelsea.googletag.cmd.push(function() { googletag.display(“div-gpt-ad-1389116196215-0”); });He hinted at not being able to rely on a section of his squad in the big games, sparking speculation that an overhaul will be carried out at White Hart Lane this summer. A source close to Spurs told FDN that technical director Franco Baldini, who oversees player recruitment, is a long-term admirer of Nastasic, dating back to the player’s days at Serie A side Fiorentina. The centre-half has fallen down the pecking order under boss Manuel Pellegrini this term, with veteran Martin Demichelis the preferred partner for captain Vincent Kompany at the heart of the Blues’ backline. An end-of-season offer is in the pipeline and the source said Spurs are quietly confident that they will be able to land the 20-year-old.