The Belgium international has been sidelined with a 
groin problem since January 3, while Diego Costa has made a recovery 
from the shin injury he suffered against Everton.
 
Eden Hazard is available for Chelsea’s clash with Arsenal on Sunday.
The
 Belgium international hasn’t featured for the Premier League champions 
since their 3-0 win at Crystal Palace on January 3 due to a groin 
injury.But Guus Hiddink has confirmed that Hazard returned to 
training earlier this week and is now fit to face the Premier League 
leaders at the Emirates Stadium."In the last two days he [Hazard] was in full training. He's available," the Chelsea coach told reporters.
"We have to be careful as he's fallen into injuries recently. I'm not sure whether he can play a full 90 minutes."
The Chelsea boss has also confirmed that Diego Costa is in 
contention to play despite being taken to hospital for scans on a shin 
injury after last Saturday’s 3-3 draw with Everton.