Chelsea and Swansea will be looking to establish a first leg lead in their Capital One Cup semi-final.
A busy season for the Blues has seen them compete for honours on seven fronts - Premier League, FA Cup, League Cup, Super Cup, UEFA Champions League, Club World Cup and Community Shield - but they are yet to get their hands on any silverware.
The Capital One Cup may not be the most glamorous of prizes, but Rafa Benitez would welcome the opportunity to pick up a major honour during his interim spell as Chelsea boss.
Adding to the Blues' enviable collection of trophies would aid his quest to land the managerial post at Stamford Bridge on a more permanent basis.
Swansea, though, harbour cup dreams of their own, with Michael Laudrup's troops hoping to take the trophy to Wales for the first time.
Cardiff made it to the final in 2012, and the Swans are determined to go one better than their arch-rivals this time around.
The men from the Liberty Stadium have seen off Barnsley, Crawley, Liverpool and Middlesbrough to make it through to the last four.
Chelsea boss Benitez has no fresh injury concerns to contend with ahead of Wednesday's cup clash.
Petr Cech (groin) and John Terry (knee) remain out, although the latter could play for with the Blues' U21 squad on Thursday.
John Obi Mikel and Victor Moses are also unavailable having left for Africa Cup of Nations duty with Nigeria.
Gerhard Tremmel is set to start in goal for Swansea.
The German has played throughout the run to the last four, and manager Laudrup feels Tremmel has earned the right to keep his place ahead of Michel Vorm as Swansea chase a first appearance at a major Wembley final.
Angel Rangel should be available after a calf problem, while Pablo Hernandez, Ashley Williams and Michu should all return to the starting line-up at Stamford Bridge.