Arsenal's Alexandre Lacazette and Hector Bellerin were seperated in training on Wednesday after they squared up to each other. The players had gone for a high ball before the incident happened. The squad had been preparing for their Europa League semi-final clash with Atletico Madrid.
Meanwhile, Mesut Ozil and Jack Wilshere returned to training in what is a boost for the Gunners ahead of Thursday night's cracker. Also, Petr Cech was back in the squad after suffering a hip injury which forced him to sit out the 4-1 thrashing of West Ham United on Sunday. There is however no hope that Henrikh Mkitaryan will be in the squad as he has only just resumed light training on Wednesday.
Arsene Wenger will hope he can steer his team into the May 19 as he gears up to end his tenure at the North London club. The Frenchman announced last week that he will depart the club he has served for 22 years. His side is the highest scoring in the competition, scoring 29 times so far. They will however have a tough job on their hands as both Antoine Griezmann and Diego Costa are expected to lead the lines for the visiting La Liga side.