Arsenal would suffer ‘big damage’ if Alex Oxlade-Chamberlain left

• Arsène Wenger issues warning over player’s contract expiring next summer
• ‘We must keep them all: Ramsey, Gibbs, Chamberlain, Wilshere,’ manager saysArsène Wenger has said it is essential that Arsenal secure Alex Oxlade-Chamberlain to a new contract because letting the 23-year-old leave would do “big damage” to the club.Oxlade-Chamberlain is one of several Arsenal players whose contracts expire in the summer of 2018 but no significant prog