Arsenal manager, Unai Emery, has said his team lost control in their 3-1 defeat to Rennes, following the red card for Sokratis Papastathopoulos.
The Gunners went ahead after only three minutes, after Alex Iwobi’s low cross evaded everyone before finding the bottom corner.
But Sokratis was shown a second yellow, for pulling down Ismaïla Sarr who was through on goal.
From the resulting free-kick, Benjamin Bourigeaud made it 1-1.
Nacho Monreal diverted Mehdi Zeffane’s cross beyond Petr Cech, before Sarr added a third for the hosts on the break.