MELBOURNE, AUSTRALIA - AUGUST 12: Jake Lloyd of the Swans consoles Alex Johnson of the Swans as he leaves the field injured during the 2018 AFL round 21 Pink Lady match between the Melbourne Demons and the Sydney Swans at the Melbourne Cricket Ground on August 12, 2018 in Melbourne, Australia. (Photo by Adam Trafford/AFL Media/Getty Images)

Sydney's head of football and former Geelong premiership captain Tom Harley says that defender Alex Johnson could still continue his career after likely suffering a sixth ACL injury on Sunday.

Speaking on SEN, Harley said Johnson and the club will sit down and come to a decision together when the time is right.

"He needs to make a decision first and foremost as to how he’s going to attack it, clearly it’s at least a 12-month rehab, he’s done that before," Harley told SEN Breakfast. 

"He’ll answer those questions himself first and foremost and then at the right time we’ll sit down as a club," Harley said.

Harley added that he believes Johnson's resilience could see him try to continue his 47 game career.

"If I know him at all, I reckon he will have a crack at it, we just need to work our way through that respectfully and in the right time," he said.