Burton Albion defender Darren Moore is nursing an Achilles injury and will not be risked, while right-back Andrew Corbett is a doubt for the cup tie.
The Brewers will definitely be without Jacques Maghoma, who is away on international duty with DR Congo.
MATCH FACTS
Head-to-head
• This is the first ever meeting of these clubs.
Cardiff
• Cardiff have made it past the first round of the League Cup in all but one of the last eight years and have reached the third round in each of the last three seasons.
• They have conceded one goal in six consecutive League Cup matches.
• Jason Koumas could make his 400th club career appearance.
Burton
• Burton's only experience of League Cup football to date was a 5-1 defeat at Reading in last season's first round.
• They suffered two 5-1 defeats in cup ties last season. The other was against Chesterfield in the Johnstone's Paint Trophy.
Source: BBC Sport
Source: BBC Sport