Chelsea's Champions League campaign begins tonight and with a relatively 'easy' group.
With that in mind, let's looks back at some of Chelsea's more embarrassing results in Europe.
St Gallen 2 Chelsea 0 | UEFA Cup First Round | 14 September 2000
Known as the 'Miracle in St. Gallen', the game is fondly remembered as one of the greatest upsets in European history.
With Chelsea up 1-0 after the first leg, English press dubbed St. Gallen as 600-1 outsiders but the plucky Swiss side were not scared and played out of their skin as they ran Chelsea ragged around the field and goals from Sascha Muller and Charles Amoah dumped the Blues out of Europe at the very first stage.
Then manager, Marces Koller told UEFA earlier this year: "It was incredible. We made Swiss football history that day."
Chelsea 1 Rosenborg 1 | UEFA Champions League Group Stage | 18 September 2007
In 2007, Chelsea's Champions League campaign got off to a miserable start at home as they toiled to a 1-1 draw with Norwegian side Rosenborg.
Miika Koppinen's shock early goal had Chelsea reeling and they had to fight their way back into the game to drag a point from it. Miss after miss, attack after attack. It wasn't until the second half that Chelsea would get into it.
Andrei Shevchenko's equaliser saved their blushes, in a season which would see them get to the Champions League final before losing to Manchester United on penalties. If you have told a Chelsea fan that after their opener though, they likely wouldn't have believed you.
Shakhtar Donetsk 2 Chelsea 1 | UEFA Champions League Group Stage | 23 October 2012
Last season's loss to Shakhtar Donetsk was ultimately what cost Chelsea their chance at defending their Champions League and dropped them at the group stage, making them the only winners to not progress from the group stage the following year.
On the back of a 21-game winning streak in the Ukrainian Premier League, Shakhtar were still considered the underdogs on their home turf as the European champions rolled into town.
Yet an early goal from Alex Teixeira and one after half time from Man City newboy, Fernandinho were enough to leave Donestk coasting - and an 88th-minute effort from Oscar was not enough to save Chelsea from statistical infamy.
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