The Argentine has made 37 appearances last season with Ajax winning the Eredvisie with Erik ten Hag.
He has been heavily linked with a move to Old Trafford this summer.
Both Man United and Arsenal are looking to improve their defences and United have already prepared an offer for the centre-back.
If Arsenal are to sign the Ajax defender, they have to cough up €40m for his services.
“Martinez is a very good and tough defender. He also shows it in the Argentinean team,” Marciano Vink told Voetbalpraat(via Sport Witness).
“I think the system and the way in which Ajax played and the combination with Timber made him an even better player. They are two pit-bulls standing there.
“He has a very good pass and creates a good build-up. He sees the game well. I only wonder if he is really suitable to play in England. I’d rather see him in the Spanish league. I think that suits him better.
“I think White is good, and Gabriel is still a bit unpolished. Neither of them are brilliant builders.
“He would be brought in for the position of left central defender, and I don’t think they’ll take Gabriel out at Arsenal just like that. If they get Martinez, I think they’ll get him for the bench. As a back-up.”
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