Jack joined in 1988 aged 34 years for a reported fee of £15,000 from Leeds Utd. He brought with him vast experience and excellent organisational skills. He was a tough central defender who could read the game extremely well and was never flustered, regardless of the situation in front of him.
He had a tremendous influence on the players around him and proved to be an excellent, strong leader on the pitch, qualities which were recognised as he was installed as club captain shortly after joining and was awarded the supporters club player of in his first season.
Jack was released in May 1990 having turned down the offer of a new contract from the club in order to concentrate on business interests away from the game and joined non-league Bridlington Town. Five months later however, Rovers boss Billy Bremner convinced him to re-sign as short term cover for widespread injuries in the Rovers defensive personnel. This short term agreement eventually lasted two years as Ashurst continued to turn in a number of reliable performances before he eventually left the club in August 1992, joining Rochdale on a non-contract basis.
Such was his impact, it was considered – in times of crisis, call jack! He was an ever reliable, excellent footballer who was a real fans favourite and made a total of 149 appearances for the Rovers.