Complex sentence: Earlier in the tournament, he had beaten Van Gerwen 6--5, who averaged 114 and hit a nine-darter, and had also seen off Terry Jenkins 6--4 despite him averaging 111.
Split into simpler sentences: Earlier in the tournament, he had beaten Van Gerwen 6--5, who averaged 114 and hit a nine-darter. He had also seen off Terry Jenkins 6--4 despite him averaging 111.