Complex sentence: However, in a game for the fourth day of the 2003/04 season against Doxa Katokopia in Makario Stadium, Rauffmann injured his knee, that would be the final game of his career.
Split into simpler sentences: However, in a game for the fourth day of the 2003/04 season against Doxa Katokopia in Makario Stadium, Rauffmann injured his knee. That would be the final game of his career.