Peterborough will again be without Ryan Taylor, Tom Pope, Dale Tonge (all foot) and Johnny Mullins (hamstring).
Midfielder Mark Bradley is on international duty with Wales, while loan pair Dean Holden and Exodus Geohaghon are unavailable.
MATCH FACTS
Head-to-head
• Peterborough have won nine of the 30 previous meetings with Rotherham. The Millers have prevailed on 10 occasions, with 11 draws.
• Posh have won both previous cup ties against Rotherham, both in the FA Cup: they won 1-0 away in the third round in 1970, and 3-0 at home in the first round in 2006.
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Peterborough
• Peterborough enjoyed their best League Cup performance in 16 years by reaching the fourth round last season.
• The 1966 semi-finalists beat Ipswich and Newcastle at London Road in last season's run.
• This will be Peterborough's first League Cup tie with Gary Johnson at the helm.
Rotherham
• Rotherham have fallen at the first-round hurdle only once in nine years.
• The Millers have a good League Cup pedigree. They were runners-up to Aston Villa in the inaugural competition in 1961.
• They knocked out Sheffield Wednesday, Wolves and Southampton in reaching the fourth round in the season before last, and Derby in the first round last season.
Source: BBC Sport
Source: BBC Sport