The skilful attacker joined Barcelona from Santos for €57 million earlier this summer but has yet to make a competitive start for the Catalans, although Martino insists that patience with the player will be key to his development.
"I’m keen to see him play with Messi, but I also have to do the right thing by every player. My aim is for him to play here for 10 or 12 years, not that he fixes one game for us," Martino stated at a press conference.
"What I want is for the player to be ok and to feel that we helped him. We’re doing the right thing with him. His behaviour is perfect. We talk a lot. It’s to be expected that he wants to play, whether he’s an idol or not.
"We’ll find the best way to introduce him into the team little by little. He chose to come to Barcelona to play with Messi.
"I think we’re all doing things right, though he has to do in 30 minutes what some of the rest have a game to do. He’s a natural and he’s used to coping with the pressure. He’s ready and we’ll take the decision when the game’s about to start."
Barcelona take on Atletico Madrid in the second leg of the Spanish Super Cup on Wednesday, after Neymar's goal secured a 1-1 draw in the first leg last week.