Neymar is like a marketing effort from Al Hilal and without him, Al Hilal will still be one of strongest teams in Saudi Professional League. His absence for estimated six months won't affect attacking power of Al Hilal too much.
Without Neymar, Al Hilal will have bigger issues in marketing and I think it is their biggest concern with the serious injury of Neymar and long recovery time he needs to come back. They will not get too much marketing effects from Neymar but will have to pay him so high salary. It is not a happy situation for all sides. Neymar knows this injury is harmful for his chance to expand his contract with Al Hilal and the club surely is not happy by paying high salary for nothing.
that's true. Despite neymar's age, his injury prone is also the main consideration from european club not to recruit him as a player. Neymar was not good like what it used to be. He is now declining so hard. Al hilal was just interesting to sign him caused by the club is looking for his popularity to push the engagement for the club in the football lovers coz this can also attract the investors to come. Im not seeing something special from neymar anymore. He is just an old guy which is always facing injury anytime and he has also bad attitude as well.
By leaving PSG in the summer and moving to Saudi Arabia, Neymar knew that his career in Europe already ended. He will not return to Europe to play for small or average clubs and he will continue to play in Saudi Arabia where he can earn a lot of money, less competitiveness. If he no longer wants to play in Saudi Arabia, he can move to Quatar or return to his home land Brazil to play some seasons before a retirement.
Big clubs in Europe will not hire Neymar with expensive costs as they are fearful with injury record of Neymar. Even without injuries, Neymar performance quickly decreases with time because he is not so ambitious and professional with training like Messi or Cristiano Ronaldo.