Simplify the following text for a Grade 5 native English-speaking person.
Original: Michael Kojo Essien ( also known as MickaÃ `` l Essien ; born 3 December 1982 ) is a Ghanaian footballer who plays for English club Chelsea and the Ghana national team .
Simplified: Michael Essien ( born 3 December 1982 ) is a Ghanaian football player . He plays for Chelsea and Ghana national team .