Gabriel Martinelli missing out in today’s training due to the muscle injury picked up against Everton.

The Brazilian wasn’t spotted walking onto the field And his now a major doubt for Arsenal’s opening Champions League game at home against PSV on Wednesday.

If Martinelli misses out, Leandro Trossard is likely to take his place in the starting XI. The Belgian replaced the 22-year-old on Sunday at Everton and scored the only goal of the game as Arsenal maintained their unbeaten start to the season.

Mohamed Elneny did take part in the session as he nears a return to action following knee surgery.