Cobos was born in
Strasbourg. For nine seasons, he played professionally with hometown's
RC Strasbourg, including two as
captain, and helped his team achieve promotion to
Ligue 1 in
1987–88 as champions. Cobos retired from the game at only 28, after two years with lowly
SAS Épinal. He appeared in 235 games all competitions comprised with his main club. ==Personal life and later life==