No keeper's union.
As Bluebirds goalkeeper David Marshall bounced the ball, Samuel Eto'o nicked it, leading to Hazard netting in the 4-1 win.
The laws of the game stipulate that when a goalkeeper bounces a ball it is within his control and the strike should not have stood.
But Cech said: "It's always a difficult question, when you lose control or not lose control. In terms of bouncing it's not one motion, so it's totally up to the referee.