Complex sentence: Nuno Filipe Oliveira dos Santos (born 19 June 1980) is a Portuguese professional footballer who plays for C.D. Tondela mainly as a forward but also as a full back (right or left).
Split into simpler sentences: Nuno Filipe Oliveira dos Santos (born 19 June 1980) is a Portuguese professional footballer who plays for Tondela. His main position is that of forward but he also plays as a full back (right or left).