Southampton manager Ronald Koeman can revert to a 3-5-2 formation in a bid to end his side's poor run of form.
The Saints have scored one goal in their last four matches which has seen them drop to fifth in the Premier League after dropping a number of points.
In a bid to halt that slide, the Dutch manager can change his side to the 3-5-2 formation which saw them perform well over the Christmas period.
That would mean Jose Fonte, Maya Yoshida and either Toby Alderweireld would form a back three partnership. When Koeman went with a three earlier in the season it worked well for the Saints, allowing one of the trio to step forward into a higher position.
It left two still in position whilst adding another option to the Southampton midfield at the same time. Whilst having three at the back means his team are narrow centrally, it gives his full-backs freedom to roam forward at every given opportunity.
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With Ryan Bertrand returning from suspension against West Brom this weekend, Koeman could give the recent permanent signing an extra impetus going forward with his inclusion.
Nathaniel Clyne on the other side needs to extra incentive to get forward, but starting him higher up the pitch would give the England international license to be a key part of the Southampton attack.
The extra man at the back could also allow Koeman to deploy two strikers at The Hawthorns. With Sadio Mane combining well with Graziano Pelle before the African Cup of Nations, Koeman could again partner the pair in search of goals.
His side are currently lacking a serious goal threat, which may also mean Shane Long is given the chance to stake his claim against another of his former sides.
Whichever line-up the 51-year-old decides to go with this weekend he will be hoping that they can get back to old ways sooner rather than later if they are to challenge for a European place at the end of the season.