Chelsea took the lead in the FA Cup third round tie against Preston North End, in a game in which Pochettino's side struggled to score the first goal of the game until the 58th minute of the second half.
The goal came from Malo Gusto's cross from the left flank into the centre of the box, where Armando Broja headed into the net for the Blues' opener.
A victory would be very important for the Stamford Bridge boss who said before the game that this competition is very important for them as it could be a way to take the Blues into Europe as they are struggling in the Premier League and have difficulty qualifying for the Champions League next season.