Complex sentence: The ABA League Top Prospect award, also known as the Adriatic League Top Prospect award, is an annual award given by Adriatic League (ABA League), a European regional league, to the league's best young players, aged 22 and under.
Split into simpler sentences: The ABA League Top Prospect award, also known as the Adriatic League Top Prospect award, is an annual award given by the Adriatic League (ABA League), which is a European regional league. The award is given to the league's best young player, aged 22 and under.