Robshaw ruled out for a month

England captain Chris Robshaw will be sidelined for up to four weeks after injuring a shoulder playing for Harlequins.

Robshaw sustained the injury in Harlequins' 24-18 European Cup victory over Leinster, but he is hopeful that he will be fit in time to lead England in the Six Nations opener against Wales in Cardiff on February 6.

He was initially ruled out of Saturday's clash against Leinster at the Aviva Stadium, but the injury turned out to be more serious than fist thought.

"Following consultation with a specialist, the Rugby Football Union and the Harlequins medical team, Robshaw is expected to return in three to four weeks," read a statement released by Harlequins.