Chelsea boss Jose Mourinho has conceded his see 'deserved' to lose to Basel after their 1-0 Champions League defeat in Switzerland last night.
The Blues stumbled to defeat after forward Mohamed Salah scored the game's only goal in the second half at St.Jakob Park.
Despite that Chelsea still ensured their progression to the knockout stages of the competition with a game to go thanks to Schalke's draw with Steaua Bucharest , although that provided only a crumb of comfort for the 'Special One'.
"A bad performance, a deserved defeat - but because of other results we qualify mathematically and that is the only positive thing for this night that we qualify for last 16," he told Sky Sports.
"Now we have to get a result at home to finish first, so that is the only positive thing."
Last night marked the second time Chelsea had succumbed to defeat against their Swiss rivals in the group stages.
When asked what had gone wrong for his side, Mourinho said: "Everything."
"I didn't like it from the first minute, we started with a defensive mistake immediately, the first time we were in the game we made a defensive mistake - I think we only had a little bit of stability and control in second-half but I felt the team was tired."
The Chelsea boss also believes that his side's 3-0 win over West Ham on Saturday, plus the two-week international break before then, took a lot out of them.
"I think the team paid today the price for their international 15 days," he continued.
"The match against West Ham was crucial and everyone played a great intense game but I think today we paid a price, they were tired.
"There was no reaction, wrong decisions - so I am not so sad with them as I understand, the team was not fresh and maybe I should make more changes in the team.
"But when you get such a good performance against West Ham you have that temptation of playing the same team as they played so well, it is difficult to change them.
"I made one change with Eden (Hazard) as I thought he could make a difference coming from the bench but perhaps I should have changed more players.
"We should get a better result than this but I don't blame the players, we have to rest and prepare for the game at the weekend because even with the defeat because of the nine points we are through, and that is the minimum we could do and now we have to fight for the first position."
Chelsea suffered a further blow when striker Samuel Eto'o was stretchered off with a groin problem.