Sherwood refused to criticise Capoue, who joined Spurs last summer for £9m.
He said: "Hopefully he'll get enough chances to prove he's good enough to play in his national team at the World Cup.
"He just has to play and train well and show that he's as good as what's in front of him. It's pretty much a clean slate.
"I'm not going to pick anyone just because he's English or French, it's not like that. If you're playing well and I like you better than the other one, then ultimately I like to win football games so the best team plays."
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