Complex sentence: An unsuccessful Sporting Clube de Portugal youth graduate, Vargas only appeared for its B team as a senior, also being loaned three times, the first at Académica de Coimbra, where he made his first division debuts at age 19.
Split into simpler sentences: An unsuccessful Sporting Clube de Portugal youth graduate, Vargas only appeared for its B team as a senior. He was also loaned out three times, the first at Académica de Coimbra, where he made his first division debuts at age 19.