FC Twente assistant coach Youri Mulder is a big fan of PSV Eindhoven fullback Jetro Willems.
Willems is being tracked by Manchester City and Real Madrid - and impressed Mulder during Holland's friendly win over Spain.
"The left flank made the difference," said Mulder.
"Willems flew continuously over. If I were coach, I would have Willems among the first players on the team sheet."