- Coverage: Watch highlights on The League Cup Show at 2330 BST on Wednesday (BBC One); listen live on BBC Radio Wales (SE FM only) and score updates on BBC Radio 5 live; text commentary on the BBC Sport website
TEAM NEWS
Cardiff manager Malky Mackay is set to give Rudy Gestede a starting place.
The French striker is likely to be given his full home debut despite bruising his knee against Burnley after coming on as a substitute.
Huddersfield pair Gary Roberts (Achilles) and Gary Naysmith (ankle) are both injury concerns.
Manager Lee Clark could be tempted to include midfielder Damien Johnson, who is bidding to end his eight-month injury absence following knee surgery.
MATCH FACTS
Head-to-head
• These clubs have met 64 times, but never outside the league. Huddersfield have won 29, Cardiff 17, with 18 drawn.
• The Terriers' last match on Cardiff soil was in the 2002/03 third-tier season, when they lost 4-0.
Cardiff City
• The 1966 semi-finalists were taken to extra-time by Oxford, before completing a 3-1 away win in the first round.
• They are bidding for a place in the third round for the sixth time in eight years.
• Their involvement in the competition was ended at this second stage by then League One Peterborough last season.
Huddersfield Town
• The 1968 semi-finalists are striving for a place in the third round for the first time in eight years.
• Their last second-round victory was against Sunderland in September 2003.
• This is also the fifth consecutive away tie in the League Cup, for a club who have lost once in 29 league and cup outings.