MATCH FACTSHead-to-head
Crystal Palace have never lost to Cardiff in six previous cup competitions, winning all five home matches and drawing their only away encounter.
Palace are yet to win on three previous visits to the Cardiff City Stadium (D2, L1), that defeat came last November as Kenny Miller and Peter Whittingham both scored in a 2-0 Bluebirds' win in the Championship.
Miller's strike that day ended Crystal Palace's new club record run of 619 minutes (10-and-a-half-hours) without conceding a goal.
Cardiff City
Cardiff have qualified for the semi-finals of the Leage Cup for only the second time in their history, they were beaten 10-3 on aggregate by West Ham during the 1965/66 season.
The Bluebirds have won nine and drawn one of their last 10 League Cup matches on home soil.
Cardiff have only failed to score in four of 34 matches in all competitions this term; three times in the Championship and the first-leg defeat to Palace.
Crystal Palace
This is the Eagles' fourth appearance in the last four of the League Cup and their first in 11 seasons.
Palace lost 5-1 on aggregate to Arsenal in 1993, 2-0 on aggregate to Liverpool in 1995 and 6-2 over two-legs to Liverpool in 2001; blowing a 2-1 first leg lead in the process.
The Eagles have won all six Carling Cup matches this season, and have not lost in eight, since the 2-0 reverse to Manchester City in the second round in August 2009.
Dougie Freedman's side have conceded just three goals in their six League Cup matches this season and scored twice in every round, bar their 1-0 semi-final first leg victory.