Western Bulldogs

Williams was subbed off during the third quarter of last week's big win over Gold Coast with scans later confirming a fracture.

He will undergo surgery on Monday.

"In the third quarter, Bailey came to the bench after a heavy hit to his collarbone," head of sports medicine Chris Bell said.

"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 27-year-old fell awkwardly on the cricket pitch area of Moe's Ted Summerton Oval during the JLT Community Series match with Collingwood on March 10.

He was immediately taken from the field, but returned a short time later before finally conceding to the injury.

Beveridge told AFL.com.au Roughead had recovered well from the knock and trained at "100 per cent" on Monday.

With the Dogs already missing important trio Liam Picken (concussion), Marcus Adams (ankle) and Dale Morris (knee), the availability of Roughead is a major fillip.

The Dogs lost by three points on Sunday at Etihad Stadium, with James Sicily's starring final term – he booted three goals – pushing the reigning premiers across the line.

But Boyd said the Dogs should gain self-belief from the contest, which was their first loss in an impressive start to 2016.

The 23-year-old missed all of 2015 after suffering an ACL injury in last year’s NAB Challenge but looked in excellent shape, winning plenty of the ball and dominating around the stoppages.

Liberatore won the Dogs' best and fairest in 2014 and came second in 2013.