At least four players were absent from Arsenal’s training on Monday as the squad prepares for their Champions League semi-final second leg against Atletico Madrid.
They are captain Martin Odegaard, Kai Havertz, Jurrien Timber and Mikel Merino.
Following their 3-0 win over Fulham last Saturday, manager Mikel Arteta expressed optimisim that Odegaard and Havert could face the LaLiga side.
But neither of them were pictured in the open training session.
Timber and Merino are long-term absentees, although there is hope they could return before the season ends.
There was good news however as Bukayo Saka took part in the session, after making his return from injury against Fulham.