James Carragher’s first-half header gave Wigan a 1-0 victory over Rotherham which mathematically secured their League One safety with three matches to spare.
After a relatively dour first half-hour, Latics took control with Maleace Asamoah’s effort being saved by Dillon Phillips.
But the Millers goalkeeper had no answer nine minutes before the break when Owen Dale’s deep corner was nodded home by Carragher at the far post.
Rotherham had an immediate opportunity to level when Joe Powell’s free-kick was nodded wide of the target by Mallik Wilks, who had to do better from bang in front.
Sam Tickle then made a superb save right on half-time to keep Latics ahead, denying Sam Nombe from close range.
That was about it from Rotherham as an attacking force, with Asamoah seeing a second-half shot saved before substitute Jonny Smith sent two efforts off target for Wigan.
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