Granit Xhaka is on a one-man mission to help Arsenal rediscover their nasty streak having added to his record as the most dismissed player across Europe's big five leagues since the start of last season.
Xhaka arrived at the Emirates with a reputation for ill-timed tackles, having been sent off three times and received 13 yellow cards during the 2015-16 Bundesliga season with Borussia Monchengladbach.
The north London club will have been aware of his hot-tempered character when they parted with £35million for his services last summer, but he is in danger of becoming an expensive liability.