West Brom manager Steve Clarke has backed Boaz Myhill to fill the gap left by injured first-choice goalkeeper Ben Foster.
Foster is struggling to recover from a groin injury in time for Saturday's clash at Wigan and saw a specialist in Germany on Thursday to determine the extent of his recurring problem.
The former England international was below full fitness for Monday night's 2-0 home win over Southampton and was unable to kick with his preferred left foot.
Foster was ruled out of the final game of last season against Arsenal at the Hawthorns with a groin injury and also missed part of pre-season.
But head coach Clarke has faith in Myhill who, if he faces the Latics, will be making his first Baggies appearance for 21 months since the opening game of the Roy Hodgson era.
He said: "We've got good back-up keepers here. Myhill played on loan in the Championship last season (at Birmingham) and had a really good season.
"He trains well every day and, if I have to rely on Boaz to play, I would be happy with that."