Arteta calls on Arsenal to prove their worth after double blow

Mikel Arteta has urged Arsenal to prove they have the mental strength to bounce back from a painful spell that wrecked their Champions League challenge and dented their Premier League title bid.Chasing Arsenal's first Premier League crown in 20 years after blowing an eight-point lead in the title race last season, Arteta knows the verdict will not be kind if his team finish empty-handed again.