Club want explanation after spot-kick given against them They are likely to raise penalty not awarded at Aston Villa Arsenal are seeking an explanation from Pro Ref over the penalty awarded to Sunderland on Saturday that Mikel Arteta described as “ unacceptable at this level ”. It is understood the Premier League champions contacted Pro Ref on Monday to request a meeting after Ezri Konsa was penalised after an incident involving Dan Ballard at the Stadium of Light. David Raya made a brilliant s…