Carlton midfielder Richard Hadley's AFL season is almost certainly over, while hamstring injuries have cast doubt over the finals prospects of four other players.

Geelong's Paul Chapman, St Kilda's Max Hudghton, Brisbane's Daniel Merrett and Adelaide's Robert Shirley all sustained hamstring damage during weekend matches.

Hadley, who had been in good form for the Blues, broke the ulna bone in his forearm during the second quarter of Saturday's match against Melbourne.

While Hadley is expected to meet with a specialist on Monday to determine whether he needs surgery, there is little chance the Brisbane premiership player can be part of the Blues' finals campaign.

Chapman tweaked his left hamstring on Friday night against the Western Bulldogs, in what was his first game back after a two-match absence with an injury to the same muscle.

Veteran Saints backman Hudghton, who has already been sidelined by calf and ankle injuries this season, damaged his hamstring while playing in the VFL on Saturday.

Lions' key defender Merrett hurt his hamstring in the first half of his side's comeback win over Port Adelaide on Saturday night.

And Crows' tagger Shirley injured a hamstring during his 150th match, as Adelaide comfortably downed West Coast on Saturday.

The Crows will also need to assess the fitness of star on-baller Scott Thompson, who sustained a corked hip, ahead of next Saturday's encounter with Carlton.

Meanwhile, strugglers Richmond and Melbourne also have some injury worries ahead of their final matches of the season next weekend.

Tigers Will Thursfield (AC joint), Chris Newman (knee), Daniel Jackson (foot), Shane Edwards (eye) and Ben Cousins (concussion) all sustained injuries during Saturday night's loss to Hawthorn.

Cousins is expected to recover well enough to play against his former club West Coast at their home ground Subiaco for the first time next Friday night, with Edwards and Jackson also expected to play.

But defenders Thursfield and Newman are in doubt.

Melbourne's Ricky Petterd (adductor) and Matthew Whelan (hamstring) are both expected to miss the Demons' clash with St Kilda next Sunday.

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