Complex sentence: Two weeks later he made his debut for the Cantabrians during a 1--1 draw at Atlético Madrid, having replaced Alexandre Geijo for the final twenty minutes; however he was replaced by Toni Moral before the final whistle, injured.
Split into simpler sentences: Two weeks later he made his debut for the Cantabrians during a 1--1 draw at Atlético Madrid, having replaced Alexandre Geijo for the final twenty minutes. However he was replaced by Toni Moral before the final whistle, injured.