Chelsea face Tottenham in first FA Cup semi-final.
Chelsea and Tottenham are first and second in the Premier League and the two best sides at the moment clash in the first of the weekend's FA Cup semi-finals at Wembley.
With both sides from London there has been less criticism of the 5.15 kick-off time and a full house is expected at Wembley.
Spurs have won just two of their last 16 meetings with Chelsea in all competitions (D7, L7) and the last time these sides met in the FA Cup was at this stage in 2012 - Chelsea won that match 5-1 on the way to lifting the trophy.
Spurs have lost six FA Cup semi-finals in a row and are looking to avoid a record seventh straight defeat with their last FA Cup semi-final win coming against Arsenal in 1991.
Despite these stats, Spurs fans will expect their side to overcome their Chelsea hoodoo as they have won eight games in a row in all competitions, their best run since a 13-game winning streak in 1960 and that side did the double a year later.
The bookmakers can't split the teams with Chelsea 6/4, Spurs 7/4 and the draw 13/5.
Both managers are mindful of the opposition:
Chelsea head coach Antonio Conte said "Tottenham now is a really great power in English football.
"There is a moment you have to finish considering yourself an underdog. I think this is the right moment."
Tottenham manager Mauricio Pochettino said "I think if there is one favourite it's Chelsea because they are top of the table, because of the experienced players and the manager that they have.
"We are talking about one of the best teams in Europe.
"But we are in a good moment, too, and we are hungry to challenge this type of team."