Barcelona forward Neymar has been ruled out for two weeks after being diagnosed with mumps, a contagious viral infection, despite having a vaccine against the disease.

The Champions League winners are preparing to face Sevilla in the UEFA Super Cup next Tuesday and will have make do without their star forward.

A club statement on Sunday confirmed Neymar will be sidelined for a couple of weeks but should be back in time for the start of the La Liga season.

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Barcelona forward Neymar (right) has been ruled out for two weeks after being diagnosed with mumps

Neymar will be sidelined for a couple of weeks but should be back in time for the start of the La Liga season

WHAT IS MUMPS? Mumps is a contagious viral infection, usually common in children, and is most recognisable by the painful swellings at the side of the face and under the ears, with the appearance often referred to as 'hamster face'. Mumps is spread in the same way as colds and flu. A person is most contagious a few days before the symptoms develop and for a few days afterwards. Swelling of the parotid glands is the most common symptom. Source: NHS Advertisement

The statement read: 'The first team medical staff at FC Barcelona has announced on Sunday that Neymar will be out for two weeks after being diagnosed with parotitis (mumps), despite the fact that he had previously been vaccinated against the disease.'

Neymar is also set to miss the Spanish Super Cup final clash against Athletic Bilbao, which is held over two legs on August 14 and 17.

Barcelona begin their quest to retain the La Liga title with a visit to Bilbao, before they play Getafe and round off August with a home clash against Malaga.

The Brazil international made only one pre-season appearance for Barcelona after being allowed more time off following his exploits in the summer's Copa America.

Neymar reported back for Barcelona training last week along with Lionel Messi, Javier Mascherano and Dani Alves following the quartet's involvement in the tournament in Chile this summer.

Before the 3-0 victory over Roma, where Neymar opened the scoring, Luis Enrique's side had endured a difficult pre-season having lost their last three matches against Manchester United, Chelsea and Fiorentina.

But Enrique will have to make do without his star player for the time being after the latest set-back in their preparations.

The Brazil international returned to pre-season duty against Roma and scored the opener in the 3-0 victory