Newcastle is close to the relegation zone and this match is very important for them.
The Magpies are far from desired form and they suffered 4 defeats in the last 6 league matches. Plus, Newcastle was eliminated from Brighton in FA Cup. However, there are some positive signs as Newcastle won against Aston Villa in the last round. For this match the manager Alan Pardew will be missing the injured Hatem Ben Arfa, Dan Gosling, Danny Simpson, Ryan Taylor and Haris Vuckic. It is a handicap for the hosts.
At this point I will mention that Newcastle played efficient matches in the last two rounds.
Chelsea play hot and cold under Benitez. They have some impressive results, like 8:0 win over Aston Villa and 4:0 win over Stoke, but at the same time Chelsea failed to win against Swansea (Capital One Cup), Brentford (FA Cup) and Reading (Premier League) in the last three matches. David Luiz will miss the match due to ankle injury, while Eden Hazard is suspended.
The Blues played efficient matches in the last period. The previous four matches in the Premier League have ended with Over 2.5 goals, three of them with Over 3.5 goals.
The guests will go for the victory, no doubt about that. Newcastle have to accept such open match, the full St. James Park will ask for the victory. I believe this is gonna be an efficient match.