LONDON, Oct. 18 (Xinhua) -- Liverpool striker Daniel Sturridge could be sidelined for another two to four weeks due to a calf injury.

The 25-year-old England international has been out of action for six weeks because of a thigh strain sustained on international duty.

He was closed to a comeback but pulled his calf during training on Thursday, which would make him miss England's Euro 2016 qualifying match against Slovenia.