Complex sentence: He appeared scarcely throughout his spell, as both central and left defender, and his return to Betis would be even more unassuming, as it consisted of one league match (18 minutes), with the Andalusians failing to return to the top division.
Split into simpler sentences: He appeared scarcely throughout his spell, as both central and left defender. His return to Betis would be even more unassuming, as it consisted of one league match (18 minutes), with the Andalusians failing to return to the top division.