Chelsea manager Jose Mourinho says he watched all matches involving his players during the international break.
The Blues endured a very disappointing start to the season but the Portuguese insists he is confident his team will improve and bounce back from a very negative patch.
They host Aston Villa on Saturday afternoon with defender Branislav Ivanovic ruled out after picking a hamstring injury when in action for Serbia.
"One of the reasons why we paid such special attention to these two national team fixtures was to try to understand things," Mourinho said.
"With the first fixtures, I watched every match involving my players, some live and some later.
"In the second fixture I went to the Spanish game, Silvinho went to Serbia, Jose went to Belgium, Rui controlled South America and Steve was with the FA, the England Under-21s.
"What I analysed in this period was that no player was better in the national team than they are with us, so it's not their habitat which is making them play better or worse.
"At this moment they are what they are, which gives me total confidence that it will be here that we will improve them and they will go back to their normality."