Confident Mourinho singin' the Blues

Jose Mourinho has warned Arsene Wenger that Chelsea is back in the groove as the Premier League champion looks to extend its revival in Saturday's showdown with London rival Arsenal.

Mourinho's Blues are languishing just above the relegation zone following a miserable run of one win from its first five matches, but the manager is confident his players are beginning to rediscover their swagger after a 4-0 demolition of Maccabi Tel Aviv in midweek.

That vibrant opening to its Champions League campaign was a stark contrast to the doom and gloom that surrounded the club after its worst start since 1988.