Complex sentence: Prior to 1998, the official award of the game was voted on by the referees and were known as the Rothmans Medal from 1968-1996 and the Nokia Provan-Summons Medal in 1997.
Split into simpler sentences: Prior to 1998, the official award of the game was voted on by the referees. These awards were known as the Rothmans Medal from 1968-1996 and the Nokia Provan-Summons Medal in 1997.