Swansea City kick off against Bradford City in the final of the Capital One Cup at Wembley at 4pm.
It is Swansea's first major cup final in the club's 100-year history, and they are 90 minutes - plus extra time and penalties if required - away from winning their first major cup, and qualifying for European football next season.
League Two side Bradford also have history on their minds. They have knocked out three Premier League teams already, and become the first team from the fourth tier to play in a major Wembley final.
The ITV Sport website has live updates on the action.
More top news
Aaron Ramsey has told his English team-mates at Arsenal to beware Wales overtaking them in the FIFA rankings.
Plenty of fine dry weather to come today and prolonged spells of sunshine. A cool easterly breeze will take the edge off the temperatures.
The three-day event in the Welsh capital is expected to attract more than 20,000 visitors.