Complex sentence: Griffin committed to Oklahoma before the start of his senior season and averaged 26.8 points, 15.1 rebounds, 4.9 assists and 2.9 blocks per game as a senior while leading the team to a 26--3 record.
Split into simpler sentences: Griffin committed to Oklahoma before the start of his senior season. He went on to average 26.8 points, 15.1 rebounds, 4.9 assists and 2.9 blocks per game as a senior while leading the team to a 26--3 record.