Southampton boss Ronald Koeman is cautious of Watford's in-form striking pair of Odion Ighalo and Troy Deeney ahead of the league clash between the two teams at St Mary's Stadium on Wednesday.

The Hornets strikers have shared 19 league goals among them this term and have emerged as the league's most potent striking partnership, something Koeman is well aware of.

"It's a team playing out of very good organisation and they have the spirit and the confidence in every match that they can win," said the Dutchman.

"They have two in front full of confidence, one (Troy Deeney) is working very hard for Odion Ighalo so that he can be the man scoring goals and that is difficult."

Ighalo has scored 13 goals this season while Watford skipper Deeney has contributed six goals and five assists for the Vicarage Road outfit.