Southampton boss Ronald Koeman has expressed interest in Aston Villa defender Ron Vlaar.

Koeman admits he could move for Vlaar as a replacement for unsettled Dejan Lovren.

"Ron would definitely be an option," Koeman told Fox Sports. "But I think he won't be cheap right now. Let's just wait and see."

Vlaar is a target for AS Roma and has been linked with Manchester United.

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