Complex sentence: Bernard Diomède's career began with AJ Auxerre, after playing at a youth level for the Burgundy club, Diomède made his Ligue 1 début in 1992.
Split into simpler sentences: Bernard Diomède's career began with AJ Auxerre. After playing at youth level for the Burgundy club, Diomède made his Ligue 1 début in 1992.