Dan Walker looks ahead to the weekend's football fixtures, which include the fourth round of the FA Cup. In 2009, holders Portsmouth went out at this stage, beaten at home by Championship side Swansea. It was a humbling result for Pompey and manager Tony Adams survived just another fortnight before getting the sack. The fourth round in 2009 also saw Everton get one over their local rivals Liverpool, holding them to a 1-1 draw at Anfield before clinching a place in the fifth round with a late extra-time winner in the replay. In the SPL, Rangers host Hearts ahead of Celtic's trip to St Johnstone.