Canterbury have lost a second key player to ankle syndesmosis in as many weeks with State of Origin prop Dylan Napa ruled out for up to six matches.
Scans revealed Napa suffered a grade two syndesmosis to his right ankle during Sunday's narrow NRL loss to Melbourne.
It is the same injury that ruled out five-eighth Kieran Foran for three months last week, leaving the Bulldogs without two of their best players.
Napa tried to play on after hurting the joint in the opening set against the Storm, before eventually succumbing to the pain after 16 minutes.
"I was thinking about Kieran and how he played the whole game so I was feeling like a bit of a cat going off," Napa said after the game on Sunday.
"But I was becoming a liability in defence and I could hear the Storm saying, 'Get at Napa', and I didn't want to let the team down."
The loss of the big prop will likely mean a recall for Danny Fualalo or Jesse Sue for Sunday's round-five match against St George Illawarra.
Both players were axed after the team's disastrous 0-2 start to the season.
The Bulldogs claimed their opening win against the Wests Tigers the following week before going down bravely against the Storm on Sunday.
Should Napa require the full six weeks to recover, he will return for the club's round 10 clash against Gold Coast.
Napa will then have one more game the following week, against Melbourne, to push his case for Queensland selection for game one of the 2019 State of Origin series.
He played in the opening two Origin games last year before being ruled out for the third match due to a knee injury.
