LONDON : Arsenal manager Mikel Arteta has doubled down on his claim that his side were the best in the Champions League this season, despite losing to Paris St Germain in the semi-finals, but recognised on Friday they had taken a step back domestically. Speaking ahead of second-placed Arsenal's trip to Premier League champions Liverpool on Sunday, the Spaniard stood by his midweek assertion that he had not seen a better team in Europe's top club competition. "100 per cent," Arteta told