Complex sentence: Jewell had a brief loan spell at Grimsby Town, before returning to Bradford eventually retiring as a player in 1997--98--although his last game came in the promotion-winning season from Division Two in 1995--96 under manager Chris Kamara.
Split into simpler sentences: Jewell had a brief loan spell at Grimsby Town before returning to Bradford. He retired as a player in 1997--98 when Bradford won promotion from Division Two in 1995--96 under manager Chris Kamara.