It's a big night for Cardiff City as they host West Ham in the first leg of the Championship play-off semi final.
West Ham finished two points behind Southampton in the race for an automatic promotion spot. The Bluebirds kept their hopes alive after Saturday's 2-1 win at Crystal Palace secured sixth place and the final spot in the play-offs.
If Cardiff win against West Ham, they will face either Birmingham or Blackpool in the play-off final at Wembley.
After their success at Barnsley on Saturday, Cardiff City take on Derby County tonight.
It's another important game in their quest for promotion to the Premier League.
Yesterday manager Malky Mackay said his side knew they had a tough game ahead of them, and that Derby County "have hurt plenty of teams" this season.
He also talked about the team's plan to wear black armbands in memory of former manager Eddie May, who died on Saturday at the age of 68.
Winning the game, said Mackay, "will be a fitting tribute".
Cardiff City have managed to keep their play-off hopes alive in the Championship after coming from behind to earn a draw at Birmingham City. The Bluebirds were 1-0 down at St Andrews thanks to a goal from Erik Huseklepp, before Mark Hudson equalised thirteen minutes from the end.
Bluebirds keeper David Marshall also saved a Marlon King penalty.
Cardiff City will play Birmingham City today.
It's been a poor month for the Bluebirds with just one win in their last seven league games, and manager Malky Mackay knows they'll face another tough challenge