It was the Saints boss, whose side face Fulham on Saturday, who made the revelation in Thursday afternoon's press conference.
"It's going to be a tough game against Fulham," Pochettino said.
"They've made a lot of changes a lot of signings. They've just signed Lewis Holtby from Tottenham.
"They're going to be very aggressive on their own pitch. They'll be very much wanting to get the three points from us."
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