A total of six of Celtic's upcoming seven matches are outside of Celtic Park.
Now their European journey is over, Celtic are now staring down a season-defining fortnight.
By 14 March, they might be cruising in the league with the momentum on their side and into the Scottish Cup last four.
Or, they could be still struggling to defend their title and staring at a trophyless season.
The first stop is Ibrox on Sunday for a titanic league clash, with Celtic trailing Rangers by two points having played one game less, with Hearts six clear of the champions.
Then it is a journey in midweek to Aberdeen, before returning to Ibrox in the Scottish Cup quarter-final and then hosting in-form and formidable Motherwell.
A half-dozen of their next seven matches are away from Celtic Park. This much-maligned Celtic team is about to be put under severe pressure after a chaotic first two-thirds of the season.
"We can expect a lot of twists and turns," commented a former Celtic defender. "I wouldn't be surprised if the league is decided on the final day. But they will have to do it over the coming handful of games. You have to be relentless, otherwise they will not win the trophies."
O'Neill Now Has Selection 'Conundrum'
Despite the 1-0 win over Stuttgart proving moot in Celtic's quest to reach the last 16 of the Europa League, it could yet prove significant.
The manager changed eight of his starting line-up and some of the squad members put in impressive displays to secure the club's first ever win in Germany.
Luke McCowan calmly slotted the winner after under half a minute and played positively, while in the back four, several defenders stood out in a resilient display.
Murray especially stated his claim to start next to Liam Scales. One magnificent block was notable and he was confident when dealing with set-pieces.
But the most discussed performance was delivered by second-choice goalkeeper Viljami Sinisalo as he played his part in a first Celtic clean sheet in half a dozen games.
The established goalkeeper has faced intense scrutiny after a series of errors. The 26-year-old was called upon and made six saves, in a display described as "perfect" by a club legend.
A club goalkeeping great is of the opinion Sinisalo did enough to start against Rangers on Sunday.
"He had some very good saves and looked calm when he had the ball and read the game well," was the assessment. "It's a big decision to make at the weekend. On that performance, I would be giving him the nod. Give him a run in the team now."
The Celtic manager conceded that several players have given him "food for thought".
"[Sinisalo] was outstanding in the game, really well. That's the name all round the dressing room," the manager said. "He's got plenty of talent."
Viljami Sinisalo made a strong case to start against Rangers on Sunday.
'Pivotal' Rangers Test Awaits
The other benefit of Celtic's win was that they demonstrated they can battle to a victory.
Historically, Celtic have arrived and typically sought to dominate the ball from start to finish against every Scottish rival.
But this more fragile side had looked increasingly vulnerable this year, often letting in more than one goal per game.
Having not won at Ibrox in their last four visits and given Rangers have won their last ten home matches, a show of resilience in Germany was timely.
Might Celtic take a somewhat more cautious approach? Right now, it is solely concerning winning.
"You don't need to have all the possession to win the game," noted an analyst. "You've got to work hard, defend well, get a bit of luck and have a good goalkeeper."
"Celtic have not played well this season, but they are hanging in there [in the league]. They still have a chance, with a match to spare. The players will pick up great confidence from tonight - the weekend will be a critical one."
