Walsall boss Chris Hutchings is looking to bolster his team after selling Troy Deeney, but is unlikely to push any deals through in time for this match.He has a fully-fit squad at his disposal after his side came through their opening match unscathed.
Tranmere boss Les Parry must decide whether or not to play Ian Thomas-Moore, as the Rovers board will discuss his transfer request on Tuesday.
Defender Marlon Broomes remains on the sidelines with a knee injury.
Tranmere striker Enoch Showunmi told BBC Radio Merseyside: "You look forward to the later rounds, and if we get through against Walsall, we can have the cup as a distraction from the league.
"We looked to get off to a good start against [Oldham] and it was a disappointing defeat.
"I've been in teams that have lost the first game and have gone on to do well, so hopefully that is something that can happen for us."
MATCH FACTS
Head-to-head
• These clubs have gone head-to-head 62 times; Walsall have won 29, Tranmere 21 and 12 were draws.
• They have never met in a cup competition.
• The Saddlers did the double over Rovers last season, but the reverse was the case in the season before last.
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Walsall
• Walsall are hoping to gain a place in the second round of the League Cup for the first time in four years.
• The 1984 semi-finalists registered their 50th win in the competition in August 2006, when they beat Plymouth 1-0 at Home Park, but they have been unable to add to that since.
Tranmere
• Tranmere, runners-up in 2000, reached the second round for the first time in five years by beating Grimsby 4-0 12 months ago.
• Rovers have lost their last five away matches in the League Cup, and last won on the road in the competition at Hartlepool in September 2001.
• Les Parry manages Tranmere in a League Cup tie for the first time.
Source: BBC Sport
Source: BBC Sport