The Blues bounced back from a run of three defeats in their last four games in all competitions to win 3-0 at Newcastle.
Andre-Villas Boas: "Regarding the Premier League and bearing in mind the fact that last weekend was a good win for us against Wolves and not a long time ago, we won against Blackburn away, we are making good progress.
"We recovered two points last week, we have recovered one position in the league against Newcastle, and we will have to wait on this weekend's results.
"We hope that Premier League fortunes are inverting for us. It's a good three points at a very, very difficult ground.
"We have a major, major game on Tuesday against Valencia. We hope to go through it and if we do, we set up the right emotional stimulus to take on the league leaders and hopefully further shorten the distance to them."