Complex sentence: Pyke believed his basketball and rugby background would help him adapt to Australian rules football with his 200 cm height and 105 kg weight, he saw himself playing as a ruckman and/or defender.
Split into simpler sentences: Pyke believed his basketball and rugby background would help him adapt to Australian rules football. With his 200 cm height and 105 kg weight, he saw himself playing as a ruckman and/or defender.