Tottenham have heaped pressure on themselves by failing to win any of their last four Premier League matches, according to Jan Vertonghen.
Spurs ground out a 1-1 draw at Watford on Saturday, forced to battle for a point after Davinson Sanchez was shown a red card for putting a forearm into Richarlison's face.
Mauricio Pochettino's side face an uphill struggle to climb back into the league's top four, having slipped to sixth in the table.
And now defender Vertonghen accepts Tottenham have serious work to do to set their league season back on track.