Brendan Rodgers has returned to Celtic four years and four months since his first spell in charge of the Glasgow giants came to an end.
The 50-year-old originally left Celtic Park to manage Leicester and returns as manager on a three-year contract to replace Ange Postecoglou.
Rodgers won all seven major Scottish trophies he competed for during his first spell as Celtic boss and completed an unbeaten campaign in his debut season of 2016-17.
Here, we look at how two other managers fared when they returned to Celtic for a second time.
Billy McNeill
Billy McNeill
