Western Bulldogs captain Bob Murphy is expected to miss the next three or four weeks of football with a hamstring injury.

Murphy suffered a hamstring strain during the fourth quarter of Saturday’s Round 10 win over St Kilda.

“Our assessment over the last 24 hours has confirmed that Bob has a moderate grade hamstring injury,” said Bulldogs’ Medical Services Manager Chris Bell.

“We’re also going to use this time while he’s in rehab to perform a quick arthroscopic cleanout on his knee, to address some of the minor signs of wear and tear he’s had.”

Bulldogs’ forward Clay Smith is expected to miss at least a fortnight with a minor calf strain, after he was a late withdrawal from the match against the Saints.

The Club is hopeful Matthew Boyd, Brad Lynch and Patrick Lipinski will be available following this weekend’s bye.