Simplify the following text for a Grade 8 native English-speaking person.
Original: Teimour Radjabov , also spelled Teymur Rajabov ; born 12 March 1987 in Baku , Azerbaijan is a leading Azerbaijani chess player .
Simplified: Teimour Radjabov , born 12 March 1987 in Baku , Azerbaijan is a leading Azerbaijani chess player .