“If Mesut is going to play a part in getting Arsenal back in the top four, then the club should keep him,” Parlour said. “But he has got to work hard.
“I played with Dennis Bergkamp and he very rarely had a poor game – you always knew what you would get out of him – and that is what Mesut needs to do, too.
“The best players are consistent and I want to see that from Mesut. He is a quality player but he goes in and out of games, and it could be argued that he goes missing in the big matches. That is when you need your top men to perform.
“He should have that in his locker. He has won the World Cup and starred for massive clubs. He just needs to show that desire to play for his team-mates and show more energy.
“The investment is going to be very important for Arsenal if they want to get back into the top four. Mesut is the one who is on big wages that they might need to free up. It is a massive decision for the club.”
SEE MORE: Arsenal Players Wages 2019 (Salaries Per Week List)