Barcelona forward, Neymar, will be out of action for two weeks, after being diagnosed with parotitis (mumps).
This means the 23-year-old will miss both the European and Spanish Super Cups.
The Champions League winners face Sevilla on Tuesday, in the European Super Cup in Tbilisi, Georgia.
Neymar will also not feature in the two legs of the Spanish Super Cup against Athletic Bilbao on August 14 and 17.
A club statement released on Sunday 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.
Therefore, the Brazilian striker will miss the European Super Cup final on Tuesday in Tbilisi, Georgia against Sevilla and also the Spanish Super Cup final, which sees Luis Enrique’s team take on Athletic Club over two legs on 14 and 17 August.