After a prolonged bad patch, Arsenal have sacked manager Unai Emery after 18 months in charge. He will be temporarily replaced by assistant and former Arsenal midfielder Freddie Ljungberg. Arsenal said the decision had been taken due to results and performances not being at the level required. The Gunners have failed to win any of their last 7 games in all competitions, which is their longest winless run in 27 years. It included a frustrating 2-1 loss to Eintracht Frankfurt at home in the Europa League on Thursday night.