The former Finland International's consistency has been a vital cog in Bolton's machine and he inspires confidence in those around him. The former VPS Vaasa keeper is an instinctive shot-stopper and his signing in 1997 proved to be one of Bolton's best to date. Fred's unique "4 Yard Goal" training method has given Jussi the platform to become one of the best goalkeepers in the Barclay's Premier League.
Consistency is a trait that supporters have come to expect from the club legend, and that has once again been apparent over the course of the 2009/10 season.
The Finnish stopper, who moved to the club from his homeland in 1997, was rewarded for his loyalty with a testimonial, which took place against Scottish outfit Hibernian a week before the season started.
Jaaskelainen has started in every one of the Premier League fixtures and also played his part in Wanderers' quest to the fifth round of the FA Cup by saving a penalty from Tom Huddlestone in the televised tie at the Reebok.
Jaaskelainen is sure to be remembered as one of the best pound-for-pound signings in Wanderers' proud history after a remarkable stint as the club's undisputed number one.
The long-serving goalkeeper was a relative unknown when he joined the club from VPS Vaasa in 1997 for what was a bargain £100k fee.