Senegal will appeal after they were sensationally stripped of the Africa Cup of Nations title and the Confederation of African Football (CAF) instead declared Morocco champions.
The Premier League club outplayed the Spanish champions in the last 16 first leg, but a late Lamine Yamal penalty snatched a 1-1 draw last week on Tyneside.
Despite being without striker Harry Kane, the Bundesliga leaders thumped Atalanta in Bergamo last Wednesday in their Champions League last-16 opener, racking up three goals in each half.