Rotherham have an outstanding defensive record this season.
The Millers have kept clean sheets in all of their last six matches.
They have also conceded just 18 times in 31 matches all season.
Rotherham will be hoping that Smith's goals will help fire them back into the second tier.
The striker has netted 16 times this season in the league.
Smith also managed to score in their win over Sheffield Wednesday last Sunday.
Match preview: Rotherham United vs Wigan Athletic
Rotherham host Wigan in a huge top of the table clash at The New York Stadium on Friday evening.
The Millers head into the game top of League One and with a six-point lead over Wigan.
The Latics do have a game in hand over Rotherham, however, a win for Paul Warne's side could be decisive.
Rotherham are currently on a run of six straight wins in the league.
Over the weekend, they produced a big win at Hillsborough as they defeated Sheffield Wednesday 2-0.
Wigan back in form
Wigan ended a run of three matches without a win with two victories on the bounce.
Leam Richardson's side have managed to defeat both Crewe and Charlton in their last two outings.
However, both those sides have been struggling as of late and recent stronger tests for the Latics have caught them out.
They were beaten away at Sheffield Wednesday and were held to draws by both Cheltenham and Oxford.
Although a win on Friday could help Wigan to get their title charge firmly back on track.
Rotherham United team news
Rotherham will be without Will Grigg and Mickel Miller who are both injured.
Michael Smith will be the player to keep an eye on for Rotherham on Friday.
The striker has 17 league goals to his name this season.
Wigan Athletic team news
Thelo Aasgaard and Jamie McGrath have been ruled out of Friday's clash.
Will Keane is once again expected to spearhead Wigan's attack.
The forward has netted 15 times in the league for Wigan this season.
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