The absence of Clarke-Harris means that Rotherham lose their chief goalscorer, but the Millers could very well have got something from their game against Wrexham had they been a touch more clinical.
On Tuesday, Evans's men may need just the one opportunity to edge out an out-of-sorts Leyton Orient crop, who do not pack a massive punch up top and struggle to perform in front of their own fans.
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Data Analysis
Our analysis of all available data, including recent performances and player stats up until an hour before kickoff, suggested the most likely outcome of this match was a Leyton Orient win with a probability of 40.4%. A win for Rotherham United had a probability of 33.03% and a draw had a probability of 26.6%.
The most likely scoreline for a Leyton Orient win was 1-0 with a probability of 10.53%. The next most likely scorelines for that outcome were 2-1 (8.56%) and 2-0 (7.14%). The likeliest Rotherham United win was 0-1 (9.32%), while for a drawn scoreline it was 1-1 (12.63%). The actual scoreline of 1-0 was predicted with a 10.5% likelihood. Our data analysis correctly predicted a 1-0 win for Leyton Orient in this match.
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0.24) 
