I think the fact that there are so many injuries in Arsenal may only be related to an intense training program. The strength of the players may not be able to handle this during intense and challenging training. Maybe we shouldn't be too hard on the players. The same is true for Real Madrid. These injuries will be very annoying for Arsenal ahead of tough matches.
The reason why players get injured more often than not is because of the schedule, there are too many games and the players obviously feel this fatigue and it can get them injured. We've seen managers like Pep Guardiola and others complain about the schedule, it is even worse for big clubs like City and Real Madrid that have to compete in 3-4 competitions, and have the quality to go all the way, which inevitably means more games.
Well it is what it is anyway, and the players have to play, if there are injuries in the team, it gives a chance to those who are frequently on the bench, they can take the opportunity to prove themselves and fight for a starting place in the team.
With very frequent match fixtures and European cups, the players' tendency to get injured increases with the training they carry out at a slightly higher pace than normal, because we must not forget that they are people too. Getting injured is the last thing a team wants because it's frustrating to find out your best players won't be playing for many weeks. We have seen this in Arsenal in recent weeks and it is causing serious problems. That's why it's so important to have a large player pool.