Roberto De Zerbi hopes for title challenge but knows first job is Spurs survival

Roberto De Zerbi knows his first mission is to keep Tottenham in the Premier League but believes the club has everything to challenge for the title in the future.De Zerbi will take charge of his maiden fixture as Spurs head coach on Sunday away at Sunderland with his new team on a 13-match winless league run and embroiled in a shock survival battle.Tottenham have not been relegated since 1977 but De Zerbi is the third man to sit in the managerial hotseat this season.