Former Celtic manager Wim Jansen has passed away at the age of 75.
His death was confirmed by Feyenoord Rotterdam, who paid tribute to him as "a wonderful person and great Feyenoord player".
While Jansen only spent one year at Parkhead, he led the club to the league title for the first time in a decade - preventing Rangers from winning Ten-in-a-Row.
He also brought Henrik Larsson to Celtic, having worked with him at Feyenoord, and is credited with laying the groundwork for the club's later success in the early 2000s.
Jansen announced his dementia diagnosis in October last year, shortly ahead of his 75th birthday, the Daily Record reports.
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Jansen is revered in his native Netherlands for his storied playing career that saw him win five Eredivisie titles - four with Feyenoord and one with Ajax.
He also won the European Cup with Feyenoord in 1970, beating Celtic in the final in Milan.
Jansen went on to manage Feyenoord between 1990 and 1993 before taking the reins at Celtic in 1997.
He made his mark in his sole season at Parkhead, with a league title and a league cup.
Jansen also managed SC Lokeren in Belgium and Sanfrecce Hiroshima in Japan during his 11-year career as a manager.
He last worked as assistant manager at Feyenoord before retiring from the game in 2009.
