Complex sentence: He then played one year with Varzim SC--starting but seeing his side be relegated from the first division--closing out his Vitória de Setúbal at only 29, being again second-choice during three years.
Split into simpler sentences: He then played one year with Varzim SC-starting but seeing his side be relegated from the first division. He closed out his Vitória de Setúbal at only 29, being again backup during three years.