Swans veteran Lance Franklin could miss the next month of action after reportedly pulling up sore following his side's loss to Greater Western Sydney on Saturday.
According to AFL Media, Sydney coach John Longmire revealed on Monday that Franklin is suffering from bone bruising, which was sustained on the weekend.
"He reckons it'll be two (weeks on the sidelines). We've said three to four, so that probably gives you an idea of where the discussions go," Longmire said.
"But we'll see how he goes.
"He's all right, I just had a chat with him.
"Unfortunately it was just a collision-type injury that you can't do much about. That's what happens, hopefully it's only a few weeks and he gets back going again.
"You have to roll with the punches."
The Swans will also be without ruckman Tom Hickey for a prolonged period, after the veteran tall suffered a PCL injury.
“Unfortunately Tom’s hurt his PCL so he’s probably 6-8 weeks, and Lance is probably 3-4 weeks he’s got some bone bruising. There was probably a 2-minute period before three-quarter time we lost both of them within 30 seconds," Longmire added, via Swans Media.
“Tom did his in a ruck contest which can be quite common in PCL injuries, and Lance did his in a collision.”
Meanwhile, Western Bulldogs defender Bailey Williams is set to miss the next month of action following a collarbone injury.
Williams is set to undergo surgery early this week and will be sidelined for the next 2-4 matches after scans had shown a fracture in his collarbone.
"In the third quarter, Bailey came to the bench after a heavy hit to his collarbone," Bulldogs' head of sports medicine Chris Bell said, per AFL Media.
"Scans have confirmed that he did fracture his collarbone and that required surgery today.
"In the next couple of days, we’ll confirm his plan, but expect him to miss the next two-to-four weeks."
The Bulldogs are set to face the Giants, Tigers, Blues and Power in their upcoming four fixtures.
The club will welcome the return of All-Australian defender Caleb Daniel this weekend, who returns from a one-game suspension.