Wan-Bissaka moved from Palace to Manchester United for £45m last summer and quickly became a key player for the club.
However, he is yet to make his full international debut for England, with his path currently blocked by Champions League and World Club Cup winner Alexander-Arnold.
But Van Aanholt has argued that Wan-Bissaka is clearly a better player than Alexander-Arnold, who is one year younger.
“Better than Alexander-Arnold? Without a shadow of doubt,” he told the Counter Attack podcast when asked about United’s young star.
“They are different players. Defensively, Aaron is unbelievable, better than Trent.
“Yes, Trent has got his attacking and his corners, his right foot. But if you ask Wilf [Zaha] who he would want to play against, every other day, Trent or Wan-Bissaka, I think he will say Trent.”
And Van Aanholt pointed to Wan-Bissaka’s performance for United in the Manchester derby against City as evidence of his quality.
“I have got respect for Trent, because he does everything with his assists and he is great, but defensively, just ask Sterling how good Wan-Bissaka is,” he added.
“It is a problem, and he will switch. He is one of the best right-backs, I think he could be, his attacking is good, but he needs more goals or assists to his name”
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