Arsenal's Bukayo Saka celebrates scoring their second goal during the match Europa League Group F between Standard Liege vs Arsenal at Stade Maurice Dufrasne, Liege, Belgium, December 12, 2019. Arsenal came from two goals down to draw 2-2 away to Standard Liege and win their group. REUTERS/Francois Lenoir

Arsenal's Bukayo Saka shoots at goal during the match Europa League Group F between Standard Liege vs Arsenal at Stade Maurice Dufrasne, Liege, Belgium, December 12, 2019. REUTERS/Francois Lenoir

Standard Liege's Samuel Bastien scores their first goal during the match Europa League Group F between Standard Liege vs Arsenal at Stade Maurice Dufrasne, Liege, Belgium, December 12, 2019. REUTERS/Francois Lenoir

Arsenal's Alexandre Lacazette heads at goal during the match Europa League Group F between Standard Liege vs Arsenal at Stade Maurice Dufrasne, Liege, Belgium, December 12, 2019. REUTERS/Francois Lenoir

Arsenal's Alexandre Lacazette celebrates scoring their first goal during the match Europa League Group F between Standard Liege vs Arsenal at Stade Maurice Dufrasne, Liege, Belgium, December 12, 2019. REUTERS/Francois Lenoir