We have reached the quarter-finals of the FA Cup now, and things have changed. There are no more replays: we now go to extra time and penalties. Also, for the first time ever, there will be an extra substitution allowed if any of the matches go beyond 90 minutes.
The weekend starts with struggling Middlesbrough play at home Manchester City; then Arsenal, who have just suffered the humiliation of being knocked out of the Champions League 10-2 by Bayern Munich, look like they might just lose to non-league Lincoln City.
Then on Sunday Tottenham play at home to Millwall, who in the last round knocked out Premier League champions Leicester City. Finally on Monday, it is the big Premier League clash when current Premier League leaders Chelsea face Manchester United.
Middlesbrough v Manchester City is on BT Sport 2 at 11.45 (kick-off at 12.15)
Arsenal v Lincoln City is on BT Sport 2 at 17.00 (kick-off at 17.30)
Tottenham Hotspur v Millwall is on BBC One at 13.30 (kick-off at 14.00)
Chelsea v Manchester United is on BBC One at 1930 (kick-off at 19.45)