Simplify the following text for a Grade 5 native English-speaking person.
Original: MatÃ as Ariel FernÃ ndez FernÃ ndez ( born 15 May 1986 ) is a Chilean footballer who plays for Sporting Clube de Portugal in Portugal .
Simplified: MatÃ as FernÃ ndez ( born 15 May 1986 ) is a Chilean football player . He plays for Sporting Portugal and Chile national team .