Neymar will not have injury problem much in the Saudi Arabia pro league, like he had in Europe. In the Saudi Arabia pro league they play less matches compare to Europe, Neymar will have much resting time here. Neymar Will give u his best when he's injury free. He's among the best players in the world, having him in this here is another big plus to the league After Ronaldo.
AlHilal has the strongest team in the league after Alnassr and they are doing very well without Neymar. Neymar is just addiction strength to them when he returns from injury.
I agree with you the competition and schedule in the Europa League is not like in the Saudi Pro League so Neymar has more time to rest and the risk of injury is low, even though Neymar is injured I don't think it's a big problem because Al Hilal still has several players he can rely on as we know this season Al Hilal brought in many of Europe's top players. To be honest I was really looking forward to the Al Hilal vs Al Nassr fight unfortunately we won't be seeing this match in the near future due to the schedule of both teams playing in November, the match last August was not a real match because Neymar and the other players were not in the lineup.