Main news from English football on 22nd July

On the day when Nottingham Forest signed Nigeria defender Ola Aina on a free transfer after his departure from Torino, Aston Villa announced that Moussa Diaby has joined Unai Emery's side from Bayer Leverkusen for an undisclosed fee. Meanwhile, Pep Guardiola laughed off claims that he was the greatest coach of all time, saying he lives with incredible doubts despite leading Manchester City to the treble last season. Elsewhere, Arsenal boss Mikel Arteta said every game is a test for them as they will fight for the Premier League title in the upcoming season.