Complex sentence: Zverev won the 2014 Australian Open juniors as the no.1 seed, defeating the no.2 seed, Stefan Kozlov, 6-3 6-0 in the final.
Split into simpler sentences: Zverev won the 2014 Australian Open juniors as the no.1 seed. He beat the no.2 seed, Stefan Kozlov, 6-3 6-0 in the final.