Simplify the following text for a Grade 4 native English-speaking person.
Original: JosÃ KlÃ berson Pereira ( born 19 June 1979 ) , commonly known as JosÃ KlÃ berson or simply KlÃ berson , is a Brazilian football center midfielder who plays for Brazilian club AtlÃ tico Paranaense on loan from Flamengo .
Simplified: JosÃ KlÃ berson ( born 19 June , 1979 ) is a Brazilian football player . He plays for Flamengo .