Complex sentence: Even when Makaay left Deportivo in June 2003 for FC Bayern Munich, Tristán never regained his form and confidence: in the 2003--04 campaign he played just ten full matches and was taken off in 20.
Split into simpler sentences: Even when Makaay left Deportivo in June 2003 for FC Bayern Munich, Tristán never regained his form and confidence. In the 2003--04 campaign he played just ten full matches and was taken off in 20.