Mikel Arteta made it clear following his team's 1-0 Premier League win over Wolves that they must solve their discipline problem if they hope to qualify for the Champions League spots. The Gunners boss saw his side take the lead in the 25th minute at Molineux, Gabriel getting free in a crowded penalty area to poke home. Ad/> And thereafter they were largely comfortable until a bizarre red card for Gabriel Martinelli on 69 minutes — the like of which Arteta said he had «never seen before» in his football career — saw the Brazilian booked twice in quick succession for a foul and dissent.