By Josh O’Brien Chelsea boss Mauricio Pochettino was spotted in the midst of an awkward exchange with Blues star Cole Palmer following the FA Cup win over Preston North End. The west Londoners looked way off the pace for the first 45 minutes at Stamford Bridge and the Championship outfit managed to hold their hosts to go in to the interval with the scores locked at 0-0. However, the second half saw the floodgates open and Chelsea eventually ran out 4-0 winners. Goals from Armando Broja, Thiago Silva, Raheem Sterling and Enzo Fernandez ensured Pochettino’s men booked their place in the next rou…