A controversial first goal for Chelsea helped them overcome a determined Cardiff City side with a 2-1 win.
Ceasar Azpilicueta restored parity with a header that would have otherwise been ruled out for offside. In Eden Hazard's absence, Pedro was charged to operate from the left wing and he had his fine chance in the 10th minute when he curled a good cross from the edge of the box but bounced on the roof of the net.
Cardiff tested Chelsea's resilience in the 12th minute when Murphy used his left feet to aim at the bottom corner but the ball narrowly skewed wide of Chelsea's right-hand post. Willian, Pedro and Alonso all worked brilliantly after Chelsea won the corner kick in the 39th minute but their brilliance eventually became fruitless when Alonso's right-foot shot went wide.
Camarasa's sumptuous strike in the 46th minute opened the score for the hosts. A Gunnarsson long throw went back to him and he found Harry Arter whose pass landed on the scorer's feet. His first touch let ball flew past Chelsea players and into the top of the net and all Kepa could do is to watch it like a movie.
Chelsea were lucky to see referee Craig Pawson paly down Cardiff's appeal for a penalty cry. Ross Barkley looked to have handled the ball while attempting to clear his area and the ball awkwardly hit his hand in the 48th minute.
Another penalty appeal by the hosts was rejected after Antonio Rudiger appeared to have manhandled Morrison. Pawson again was not interested in those appeals and waved play on instead. Ruben Loftus-Cheek struck in the 90th minute to hand Chelsea a surprising lead in Wales.