Ronald Koeman explains why he was worried about signing a Celtic player

The Southampton boss has been discussing Celtic and the Scottish Premiership.

Southampton head coach Ronald Koeman admits he was worried about signing a player from Celtic and the Scottish Premiership, according to Sky Sports.

Indeed, the South Coast club bought Virgil van Dijk from Celtic last summer but Koeman says he wasn't entirely convinced by the level at which his compatriot was playing.

In the end, he admits he was convinced by Van Dijk's experience in the Champions League.

The Dutchman told Monday Night Football: "My only worry with Virgil was that we signed him from Celtic in the Scottish league. It's different from the Premier League.

"It makes it a little more tricky but he had experience of playing against Barcelona in the Champions League, so in the end there was no doubt about it."

Koeman did sign Van Dijk, of course, and the rest is history.

The Dutchman has been superb for Southampton, both in a defensive and attacking sense, while Celtic's defence has understandably not been the same without him.

Southampton currently sit seventh in the Premier League, five points off fifth and seven off the top four.

The Bhoys, meanwhile, are one point clear at the top of the Scottish Premiership, although they do have a game in hand over Aberdeen.

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