Complex sentence: He spent the last two years of his career with Hearts, scoring twice against Kilmarnock and Aberdeen, before retiring in 2003, and has worked as manager of lower-league Saint-Nazaire, his home city, between August 2003 and March 2007.
Split into simpler sentences: He spent the last two years of his career with Hearts, scoring twice against Kilmarnock and Aberdeen, before retiring in 2003. Mahe worked as manager of lower-league Saint-Nazaire, his home city, between August 2003 and March 2007.