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Walsall are 11th in League Two, while Leicester sit 14th in Premier League
Walsall's best FA Cup runs have seen them reach round five, last in 2002–03
Leicester won the competition for the first time in 2021
Luton 2-2 Grimsby
The end of a pulsating tie and Grimsby have earned a place in the hat for the fifth round draw on Monday night.
Gavan Holohan’s first-half header against the run of play was cancelled out by Elijah Adebayo’s cool penalty after the interval but after Jordan Clark had volleyed the Hatters infront, Harry Clifton poked an instant reply to ensure these two will do it all over again at Blundell Park.
Sheff Wed 1-1 Fleetwood
And it's finally all over in South Yorkshire. Another replay on our hands.
Mallik Wilks cancels out Promise Omochere's earlier goal for Fleetwood as a trip to the Lancashire coast now awaits.
Blackburn 2-2 Birmingham
Jordan James' last-gasp goal means these two sides will do it all again in a replay on Tuesday night.
Blackburn will be furious they did not see this one out, but this was an unexpected thriller full of chances.
FT: Southampton 2-1 Blackpool
Jo Tessem
Ex-Southampton player on BBC Radio Solent
Very scrappy game from Southampton. Looked out shape. Was very poor and very close to a replay.
Well done to Blackpool for their form today. Very good performance from them and looked better at times.
FT: Fulham 1-1 Sunderland
Don Hutchison
Ex-Liverpool midfielder on BBC Radio 5 Live
Amazing game of football, it could have been 4-4.
Fulham put a shift in but for long periods they were outplayed.
Ipswich 0-0 Burnley
No goals and another game on the cards for these two promotion contenders.
League One Ipswich were so close to that late winner, though.
Southampton 2-1 Blackpool
Southampton are in the fifth round...just. Spirited performance by Blackpool but they are edged out by the Saints.
Fulham 1-1 Sunderland
And breathe.
Ipswich 0-0 Burnley
So close to a winner for Ipswich!
Conor Chaplin's cross floats over Bailey Peacock-Farrell but it bounces back off the woodwork.
Fulham 1-1 Sunderland
What a game! Anthony Patterson with a stunning save in the final seconds to deny Fulham.
Luton 2-2 Grimsby
SEVEN added minutes at the end of this one. Grimsby seeking to see it out, Luton desperate to win it today.
Will there be one more twist?
Southampton 2-1 Blackpool
Corner to Blackpool in the final minute of stoppage time. Up comes keeper Chris Maxwell.
Bristol City 3-0 West Brom
Two sublime finishes from 20-year-old Sam Bell, either side of a goal from 19-year-old Alex Scott see Bristol City into their third fifth round tie in five seasons.
Seven unbeaten for Nigel Peason's side. A day to forget for Carlos Corberan and Baggies fans.
Fulham 1-1 Sunderland
Oh it's way offside. What a moment that could have been.
Fulham 1-1 Sunderland
Oh no...
Chris Rigg
FIFTEEN YEAR OLD CHRIS RIGG WITH THE WINNER!
But is it offside?
Jordan James
Blues have found that goal and 4,000 fans go wild!
From Hannibal Mejbri's low ball across, fellow sub Jordan James finds the net, although Thomas Kaminski will think he should have kept it out.
Sheff Wed 1-1 Fleetwood
The Owls are looking the likelier winners at Hillsborough.
The ball drops to Barry Bannan in the box, but Fleetwood have numbers there to make the block.
Southampton 2-1 Blackpool
Six added minutes. Will Blackpool find a dramatic late equaliser and earn a replay?
Luton 2-2 Grimsby
Whisper it, but it's Grimsby who are pushing for a winner. Harry Clifton, who got the equaliser, looking to cement his place in club history with a low strike which is somehow blocked in the six-yard box by a defender with keeper Ethan Horvath unsighted.