Arsenal win at Burnley shows 'we have good character and steel', says Shkodran Mustafi

Shkodran Mustafi felt Arsenal displayed the "steel" required to mount a sustained Premier League title challenge this season after Laurent Koscielny's bizarre stoppage-time goal had snatched a 1-0 win at Burnley.

Koscielny's winner rebounded in off his elbow in the third minute of added time and Arsene Wenger conceded his side had been lucky to mark his 20th anniversary as manager with victory.