Barkley made his England debut last week against Moldova.
"It's too early," Kendall told the Daily Mail of the 19-year-old. "He has to be consistent at league level over a period of time - and then be judged. It's too early now. A factor, of course, is the limited supply of players for the England team. So they're wishing him on. And it's quicker than it should be.
"They're jumping him forward because of the number of foreign players, but the boy needs patience - woah."
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