No one knows who to blame after Manchester United gift Chelsea an early lead

Remember Pedro?

Not only is the Spaniard still at Chelsea after a miserable first season, but he's actually started playing again. And not only that, but he's started scoring. One of José Mourinho's last signings as Blues manager came back to bite his former manager in the first minute of Manchester United's trip to Stamford Bridge, nipping in to give the home side an early lead. If you're reading this on your mobile device, you can watch the goal here. https://twitter.com/SkyFootball/status/790210121259298817 Someone had to be to blame for letting the former Barcelona man sneak in between United's defenders and goalkeeper to score his first goal against the Red Devils since the 2011 Champions League final. But who? Was it Daley Blind's fault for switching off? https://twitter.com/dboetan7i/status/790206534085140480 Or perhaps Chris Smalling had a bigger part to play in the communal balls-up. https://twitter.com/kevinmccauley/status/790207099850592256 Actually, perhaps David De Gea was the man to blame. https://twitter.com/SocanalysisHQ/status/790207037766377472 Gary Cahill doubled Chelsea's lead 20 minutes later, and at least in that instance there was no need to single out one player in particular for blame. https://twitter.com/MiguelDelaney/status/790211718957899776 https://twitter.com/danielstorey85/status/790211555963043841 A very worrying first quarter of the game that will surely give Mourinho plenty to think about. You can catch up on the latest episode of JOE's Football Friday Live right here...