Southampton striker Ricki Lambert says they underperformed in defeat to Tottenham.
Saints boss Mauricio Pochettino made it clear to his players how disappointed he was with their performance.
Lambert said: "Sunday was a shadow of ourselves so we're disappointed with the performance and with the result.
"Christmas is a very important time and it's not good to go in on a result like that, but perhaps it'll be the kick up the you know-what to get us going again."
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