John Stones scrambled home an equaliser seconds from time amid chaos and controversy to deny Arsenal a famous victory against Manchester City at Etihad Stadium. Arsenal had mounted a magnificent rearguard action following the first half-dismissal of Leandro Trossard – and stood moments away from arguably the finest moment in manager Mikel Arteta’s reign – until substitute Stones forced in following a well-worked short corner at the end of seven minutes of added time.