ESSENDON's forward line will undergo a further change in personnel, with Mitch Brown to be sidelined for up to a month with a fractured wrist.

Brown came off the ground late in the fourth quarter of Thursday's clash against Collingwood at the MCG and sought medical attention.

The Bomber will not need surgery, but football manager Dan Richardson said he would still miss three or four games with the wrist injury.

FULL INJURY LIST Who's ruled out and who's a test?

"It's disappointing for Mitch given he's been playing a valuable role for us and is in solid form so far this season," Richardson said.

"He will miss roughly the next three to four weeks of football, but pleasingly he doesn't require surgery on the fracture.

"He is able to continue his running program immediately and will fully commit to his rehabilitation process over the next four weeks to ensure a return to football as soon as possible."

Jayden Laverde has been in strong form in the VFL and is an option to come into the side as a mid-sized forward.

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