The Argentinian ace was outstanding as Spurs saw off FC Sheriff 2-1 in the Europa League last week.
Walker told the Daily Star Sunday: “He’s very talented but you have to remember it can be very difficult to settle here.
“It was hard enough for me when I came down from Sheffield and that is only two hours away on the M1!
“So it has been much more difficult for him but he proved his talent when he got his goal and earned the penalty too.
“When he gets the chance I am sure he can continue to show his ability.”
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