Complex sentence: He was expected to sign for English Premier League team Newcastle United for a fee around £3 million before the January 2008 transfer window closed, but finally remained in Spain until the end of the season as the English side's offer proved to be a hoax.
Split into simpler sentences: He was expected to sign for English Premier League team Newcastle United for a fee around £3 million before the January 2008 transfer window closed. However, Álvaro finally remained in Spain until the end of the season, as Newcastle's offer proved to be a hoax.