Josh Green is set to miss the next two matches with a hamstring strain.

The Essendon forward suffered some discomfort during the win over St Kilda.

Subsequent scans have confirmed a strain and the 24 year old has been ruled out of Saturday’s match against North Melbourne.

“He came off with hamstring tightness and pulled up quite well the next day but we had it scanned just in case,” High Performance Manager Justin Crow said.

“He’s got a strain in the epimysium which is the layer around the hamstring muscle.

“These are low grade injuries but we’ve got to respect it as well.

“Normally with this you miss two weeks, but it can be as quick as one and as long as three.

“Our best guess is that Josh will miss a couple of weeks of footy.”

Jobe Watson is set to resume after he was rested last weekend.

Patrick Ambrose is also in line for a return.

The defender hasn’t played since ANZAC Day because of back-to-back quad injuries.

“We had a scan to check the stage of healing in the quad,” Crow said.

“The Doctor consulted with a radiologist and they’re both comfortable that it’s at a state of healing where he can play, which is great news for Paddy.

“He’s done a power of work, we’re comfortable for him to play a full match and be available for selection, obviously pending main training tomorrow.”