Barcelona's Champions League flaws exposed again as they bow out in chaotic thriller
![Barcelona's Champions League flaws exposed again as they bow out in chaotic thriller](https://i2-prod.mirror.co.uk/incoming/article28384657.ece/ALTERNATES/s615/0_GettyImages-1437561444.jpg)
Barcelona bowed out of the Champions League with a victory away to Czech outfit Viktoria Plzen - in a victory which brought signs of promise but showed familiar flaws