Preview : Wigan Athletic vs Birmingham

Wigan manager Roberto Martinez has a fully-fit squad to choose from for Saturday's Barclays Premier League clash with Birmingham at the DW Stadium.

It means Martinez is likely to name an unchanged side following the 1-0 home win over Sunderland last Saturday as the Latics firmly put behind them their embarrassing 9-1 defeat at Tottenham.

Martinez is demanding consistency, however, as the Latics seek back-to-back wins for the first time this season.

Martinez is ready to spend in January in a bid to keep the club in the Premier League.

With just four weeks to go before the new transfer window opens, the Spaniard believes he requires another two or three players to see the Latics through to the end of the season.

Martinez feels the current squad needs strengthening, notably in attack after losing the services of Marlon King.

King was sacked by chairman Dave Whelan after receiving an 18-month jail sentence after being found guilty of sexually assaulting and causing actual bodily harm to a 20-year-old female student.

Although Scott Sinclair is on loan from Chelsea, it leaves Martinez with just Jason Scotland and Hugo Rodallega as his primary striking options.

The former Scotland boss is likely to keep faith with the squad which impressed in beating Wolves 1-0 last weekend to climb into 11th spot.

Blues have climbed into 11th spot after a five-game unbeaten run which has yielded 11 points.

It is relatively rosy times for McLeish and his squad after being relegated 18 months ago and then having to battle last season to reclaim their top-flight status.

But the former Scotland boss has his feet on the ground and warned: "You are only a couple of defeats from a crisis.''

McLeish added: "The confidence is good and we have been playing well all season. I feel we have done that in 13 of the 14 games and the difference now is we are getting the results our play has merited.

He said: "What has happened with Wigan the last couple of weeks shows anyone can beat anybody in this league.

"They are a good side but on any given day there is always the fear a big club can do what happened with Tottenham against Wigan. If a side gets two or three goals in quick succession, it seems like you are playing 12 men.

"I have been on the end of similar drubbings but Wigan have shown great character and had a fantastic win over Sunderland.''