AFL Rd 9 - Fremantle v Collingwood
PERTH, AUSTRALIA - AUGUST 02: Brayden Maynard of the Magpies walks from the field after being defeated during the round nine AFL match between the Fremantle Dockers and the Collingwood Magpies at Optus Stadium on August 02, 2020 in Perth, Australia. (Photo by Paul Kane/Getty Images)

Triple premiership Lion Jonathan Brown has 'put a line' through the Magpies for 2020 amid the club's latest injury blows.

Adam Treloar suffered another hamstring injury during Collingwood's scrappy win against Sydney which could sideline him for at least a month.

The Pies confirmed Treloar's latest injury was a recurrence of the hamstring injury he suffered in Wangarrata during the Marsh Community Series.

Will Hoskin-Elliot and Isaac Quaynor also both suffered injuries in last Thursday's win.

According to Brown, the Magpies face too much of an uphill battle to be considered contenders.

“Absolutely I put a line through them for this season," Brown told Fox Footy. 

“They just can’t score enough either."

While the Pies are ranked 2nd in the league for defence, they haven't scored 60 points or more since Round 4, when they lost to the Giants in a close game.

Coach Nathan Buckley said on Sunday that Quaynor could be fit to play in a few weeks, while he was hopeful captain Scott Pendlebury (quad) will be fit for Round 12.

The Pies face the winless Crows at Adelaide Oval on Tuesday night.