Celtic are favourites to win the Scottish Premiership this season, but despite sitting second in the table, an unfamiliar unease has settled over Parkhead due to patchy performances and unconvincing results.
The manager's contract expiring next summer has raised questions about his long-term future, with the question no longer being if change is coming, but when.
Celtic's Champions League collapse in Kazakhstan was a significant blow, with a 210-minute stalemate and shootout loss to Aktobe highlighting how far they've fallen since troubling Bayern Munich last spring.
Rodgers publicly called for greater investment, but his appeals over the summer were met with what he viewed as insufficient backing from the board.
Now winless in the Europa League, their clash with SK Sturm Graz, who are top of the Austrian Bundesliga, could make or break their campaign.
Author's summary: Celtic's future uncertain amid poor performances.