Warne will travel by helicopter from London to Cardiff before handing over the ball in the centre circle.
Holders Arsenal won the FA Cup for a record 12th time on Saturday, outclassing Aston Villa 4-0 at Wembley with stunning goals from Theo Walcott and Alexis Sanchez setting up their one-sided victory.
Notts County produced an FA Cup replay shock with a 2-0 win at Premier League Wigan Athletic on Tuesday to earn a place in the fifth round.
Mohamed Salah has announced he will leave Liverpool at the end of the season, bringing an end to his successful seven-year spell at the club.
The French striker will be absent from the Arsenal first team lineup for the first time this season on Sunday.
Arsenal finished eighth in the Premier League but their record 14th FA Cup triumph last Saturday ensured another year of European football and the possibility of earning up to 40 million pounds ($52.58 million) in the Europa League.
Millwall and Blackburn Rovers fought out a goalless stalemate in a scrappy FA Cup quarter-final on Sunday with both the Championship (second tier) sides going into the semi-final draw.
They beat Millwall to win the FA Cup final 3-0 and lift the trophy for a record 11th time.\n\n
England's manager Thomas Tuchel has faced heavy criticism following their World Cup semi-final defeat to Argentina, but he attributes the loss to fundamental issues like a lack of 'ball possession DNA' rather than just tactical errors, while acknowledging the unstoppable brilliance of Lionel Messi.
First-half goals by Romelu Lukaku and Hakim Ziyech knocked the stuffing out of second-tier Middlesbrough, who had eliminated Manchester United and Tottenham Hotspur in previous rounds.
Hull City beat Sheffield United 2-1 in a fifth-round replay to reach the FA Cup quarter-finals for the first time in 37 years on Thursday. Peter Halmosi struck 10 minutes after the break to send Hull through to face Arsenal or Burnley in the last eight.
Teenager Dan Gosling scored deep into extra time to give Everton a 1-0 win over city rivals Liverpool in their FA Cup fourth-round replay on Wednesday.
Bristol Rovers got the FA Cup fifth round underway with an upset on Saturday when Rickie Lambert's late free kick gave the League One (third division) side a 1-0 win over Championship (second division) Southampton.
Everton were knocked out of the FA Cup 1-0 by third division Oldham Athletic in the third round.
Chelsea exploited Manchester City's decision to field a weakened team by romping to a 5-1 win in the FA Cup fifth round on Sunday as they joined London rivals West Ham United and Crystal Palace in the quarter-finals.
'It would be a bit ridiculous that 20 years depends on one game and that the future of the club depends on one game'
Juergen Klopp's side will meet the winners of Sunday's other semi-final between Chelsea and Crystal Palace in the May 14th final
A 68th-minute penalty by Cristiano Ronaldo secured a 2-2 draw at Middlesbrough in their FA Cup quarter-final.
Manchester United beat Reading 3-2 in an enthralling FA Cup fifth-round and earn a place in the quarter-finals.
Liverpool thrashed third division Luton Town 5-0 in an FA Cup third-round replay with Steven Gerrard grabbing a hat-trick.
Liverpool drew 1-1 at third division Luton Town and Newcastle United were goalless at Stoke City in the FA Cup fourth round.
It looked as though substitute Harry Kane's late penalty had put Tottenham into the quarter-finals but fellow substitute Davies fired home to provoke joyous scenes at Spotland.
On a seismic day in the history of Chelsea, Romelu Lukaku scored the winning goal in a 3-2 FA Cup fifth-round victory
The next instalment of Chelsea manager Jose Mourinho's mind games with Manchester City's Manuel Pellegrini and Arsenal's chance for redemption against Liverpool provide the backdrop to a mouth-watering FA Cup fifth round.
Infantino appears to have enough global support to secure re-election, forcing opponents without a credible challenger to consider shifting from defeating him to curbing presidential powers.
Liverpool beat West Ham United 3-1 on penalties after the teams were level at 3-3 after extra time in the FA Cup final.
Leicester City reached the FA Cup final for the first time in more than 50 years
Arsenal had to come from behind after Sergio Aguero scored his 30th goal of the season for City in the 63rd minute, racing away on to a pass from Yaya Toure.
Keegan's family and Newcastle announced in January that the two-time European Footballer of the Year was undergoing cancer treatment, without disclosing details of his illness.
Phil Neville scored the decisive spot kick to give Everton a 4-3 penalty shootout win over holders Chelsea after their FA Cup fourth-round replay ended in a 1-1 draw after extra time at Stamford Bridge on Saturday.
A summary of Saturday's matches in the FA Cup.
Diego Forlan, the former Manchester United and Atletico Madrid forward, has been named the new head coach for Uruguay's senior and Under-20 national football teams. He replaces Marcelo Bielsa, who left after Uruguay's early exit from the World Cup. Forlan, a celebrated player and 2010 World Cup Golden Ball winner, will bring his experience and leadership to the role, starting with the Under-20 squad.
Cesc Fabregas came off the bench to score a last-minute penalty to earn 10-times winners Arsenal a 1-1 home draw with Championship (second division) side Leeds United in a pulsating FA Cup third-round match on Saturday.
Arsenal must not rest on their laurels after successive FA Cup victories and instead use one of the side's 'best squads' to inspire them to Premier League glory next season.
Arsenal crushed Middlesbrough 4-1 while Chelsea ended the challenge of minor League Scarborough with a 1-0 win.
Arsene Wenger was hoping to get a better idea from a scan which Henry was having on a groin injury.
