A moment of controversy arose in the game when the ball hit Cesar Azpilicueta in the arm in the penalty box, prompting Swansea players to raise alarm for a penalty.
Swansea boss Paul Clement believes referee Neil Swarbrick’s failure to award his Swansea side a penalty was a key moment in their 3-1 defeat at Chelsea.
Clement told Sky Sports: “We did have a very good claim for a penalty, and the score was 1-1 at the time.
“Sigurdsson’s lifted it and I thought at the time Azpilicueta had handled it. Having had a second look on the video close-up it’s clearly a handball.
“We didn’t have very many chances and they clearly had a lot of chances, but defensively we frustrated them for long periods and we can be happy with work we put in. The players put a big shift in physically.
“But then clearly when it’s 1-1 and you’ve got a big penalty shout and the game goes on to be 3-1 against you, you’re going to feel very disappointed.”