Complex sentence: Ramírez started playing in the youth team of Colon, he was loaned to Tiro Federal for the 2004--2005 season, returning to Colón in 2005.
Split into simpler sentences: Ramírez started playing in the youth team of Colón. He was loaned to Tiro Federal for the 2004--2005 season, returning to Colón in 2005.