INJURED Adam Chambers says he has no idea when he will return to action.

The midfielder has not played yet this season because of a calf problem.

It struck last March and Chambers is still struggling to shake it off.

On Saturday, he watched Orient lose their first home game of the campaign 2-1 to Oldham Athletic.

Afterwards, Chambers said: “I thought I had got over it, but somehow it came back when I started training at the end of June.”

He said he is frustrated to be watching from the sidelines.

“I wanted to have a good pre-season and then season.

“I missed a bit of the last season which was the first time I had been out since I came here.

"I've just started training in the last couple of days. I want to get fit and then hopefully get in the team. I wish I knew when”.