By John Cross The City Ground has been the stuff of nightmares for Mikel Arteta. Two years ago, Amazon’s fly-on-the-wall documentary caught Arteta ripping into his players after Nottingham Forest dumped Arsenal out of the FA Cup. Last season, it was where they surrendered the title after a lame defeat. But this time, Arsenal’s victory might just have applied some pressure on leaders Liverpool and breathed life into Arteta’s title challenge. Gabriel Jesus scored and provided an assist for Bukayo Saka but Arsenal had to work so hard for the three points and will be grateful for their knack as th…