Wigan boss Roberto Martinez admits Saturday's Premier League visit of Birmingham is a "massive" match for his club.
The Latics are four points adrift of safety and rock bottom of the Premier League, but victory over Birmingham could move them within one point of the Carling Cup winners.
Wigan have won just once in the league since Boxing Day, but with only nine matches remaining, Martinez knows they must take advantage of their home games, of which they have four.
"The weekend's game is massive but an exciting challenge for the whole club," said Martinez.
"We need our supporters to play a big role as usual - we need to create an intimidating atmosphere in the DW Stadium."
PartnershipMeanwhile, Wigan new boy Conor Sammon believes he can form a fruitful partnership with striker Hugo Rodallega as the Latics fight the drop.
Sammon, who joined the club on transfer deadline day from Kilmarnock, made his debut as a substitute in the loss at Manchester City and he is hopeful of linking up with Rodallega again.
"Hugo's a fantastic player, Wigan's joint record goalscorer in the Premier League, and for me to be playing with players like him is a massive help," Sammon told the Wigan Evening Post.
"I thoroughly enjoyed linking up with him last week, although it was only for a short period of time.
"And I'm looking forward to hopefully more over the coming weeks.
"I'll keep working hard, and I'm confident I can keep getting myself into positions and hopefully score a few goals."