Here are the ball numbers for the fourth round:
1: Burnley
2: Exeter City
3: Ipswich Town
4: Manchester United
5: Mansfield Town
6: Middlesbrough
7: Port Vale
8: Bournemouth/Stoke City
9: Aston Villa/Everton
10: Blackburn Rovers/Cardiff City
11: Brentford/Arsenal
12: Chelsea/Brighton & Hove Albion
13: Fulham/Norwich City
14: Lincoln City/West Ham United
15: Liverpool/Leicester City
16: Newcastle United/Manchester City
