Chelsea manager Jose Mourinho has insisted that he is not "too worried" about Eden Hazard's form after the playmaker failed to put in a "good performance" against Aston Villa.

The Blues continued their unbeaten Premier League run by securing a 3-0 victory over Villa, courtesy of goals from Oscar, Diego Costa and Willian.

Despite the win, Mourinho has singled out Hazard by claiming that it was "not his day" at Stamford Bridge on Saturday.

"Eden Hazard started the season well, played good matches but had an isolated not good performance," Mourinho told the club's official website. "But no dramas and I'm not too worried about it. It was not his day."

Chelsea have a three-point lead at the top of the league table after six matches.