COLLINGWOOD will be sweating on the fitness of young gun Darcy Moore this week ahead of the Pies’ MCG blockbuster against league leaders Richmond on Saturday afternoon.

The key defender was a very late withdrawal against North Melbourne at the weekend because of hamstring soreness.

Moore missed a month of football after hurting his hamstring in round two, before succumbing to the same problem in round eight, and only returned to AFL action in the round 17 loss to West Coast.

The season may be over for in-form Bomber Shaun McKernan, who tore his left hamstring when leaping for a mark in the second quarter of the Bombers' 29-point win over Fremantle on Saturday.

Shaun McKernan clutched at his left hamstring after this contest.



Update thanks to @MLC_Australia pic.twitter.com/1u0vRIsR6f — AFL (@AFL) July 21, 2018

Bulldogs midfielder Luke Dahlhaus may have a syndesmosis injury and is in doubt to face Port Adelaide on Sunday.

Dahlhaus appeared to twist his left ankle during a tackle in the second term of the clash with West Coast. He went down to the rooms and was seen on the bench with ice on his ankle in the final quarter.

Luke Dahlhaus was taken off with the assistance of trainers after being tackled by Elliot Yeo.



Update thanks to @MLC_Australia.#AFLEaglesDogs pic.twitter.com/eUyJTRjSIc — AFL (@AFL) July 22, 2018

Teammate Mitch Honeychurch is almost certain to miss round 19, after he was sent to hospital following a bump from Eagles skipper Shannon Hurn.

Honeychurch was stretchered from the field, with Bulldogs coach Luke Beveridge admitting the club is concerned about his neck.

Honeychurch will stay in Perth to have scans.

Mitch Honeychurch was taken off on a stretcher following this clash with Shannon Hurn.#AFLEaglesDogs pic.twitter.com/Ll60Vd3Z0b — AFL (@AFL) July 22, 2018

Adelaide could be without young duo Tom Doedee and Lachlan Murphy for its crucial match against Melbourne. Both were concussed during the third term of the Crows' win over the Lions at the Gabba and failed to return.

Lachlan Murphy was taken off with the assistance of trainers after this contest.#AFLLionsCrows pic.twitter.com/8I2RfpqSKq — AFL (@AFL) July 21, 2018

St Kilda will monitor defender Bailey Rice, after he hurt his shoulder in a marking contest in the opening term, before returning in the second.

Zac Fisher – one of the few shining lights for Carlton this season – may have a fractured leg. After an impressive start against Hawthorn, the young midfielder limped off midway through the first term.

Fisher's teammate Liam Jones will have scans to determine the extent of a knee injury he sustained during a marking contest in the second quarter. Jones missed the remainder of the match.

Hawk Jaeger O'Meara will have to prove his fitness before boarding the plane to Perth to take on Fremantle on Sunday, after he was a late scratching because of a hip issue.

North Melbourne's Alex Morgan is in doubt to face the Eagles on Sunday, after he came off during the third term against Collingwood and had ice applied to his calf.

Port Adelaide's Steven Motlop, who was a late withdrawal against the Giants due to illness, will be assessed ahead of the Power's meeting with the Bulldogs.

In other injury news:

Richmond star Dustin Martin needed some treatment after a head knock, but was fine when he returned

Melbourne ruckman Max Gawn came off for treatment to a bloodied mouth during the dying stages of the nail-biting loss to Geelong, but should be fine

At North Melbourne; Scott Thompson (nose), Jed Anderson (forehead), Luke McDonald (forehead), Todd Goldstein (lip) and Jack Ziebell (eye) all came off at various stages on Saturday, but should be right to face the Eagles

West Coast captain Shannon Hurn came off midway through the second term bleeding from his left eye, but returned soon after

Bulldogs backman Marcus Adams copped a knee to the back during the third quarter, but stayed on the field

Carlton's Jarrod Pickett passed a concussion test after a clash in the third term, but returned to the game in the final term

Gold Coast's Nick Holman hurt his left shoulder in the third quarter, but returned after treatment to finish out the game

Fremantle ruckman Sean Darcy was a late withdrawal due to groin soreness and will be assessed ahead of the Dockers' date with Hawthorn