Arsenal beat Southampton 3-1 at St Mary’s, where they had suffered a 1-0 defeat in the FA Cup just three days earlier.
Arsenal earned revenge for their FA Cup defeat to Southampton by coming from behind to beat Ralph Hasenhuttl’s side 3-1 at St Mary’s in the Premier League on Tuesday.
Having suffered a 1-0 loss on the same ground three days earlier, Arsenal looked a different team as they attacked with great panache, but fell behind to a superb Stuart Armstrong strike after three minutes.
Nicolas Pepe, who scored on his previous Premier League start at Everton in December, levelled before Bukayo Saka gave Arsenal the lead with his fifth league goal of the season.
Southampton created several chances to claim a share of the points but found Gunners goalkeeper Bernd Leno in good form, and Alexandre Lacazette scored in the 72nd minute as Arsenal leapfrogged their hosts into eighth place in the table.