Head coach Paul Grayson said: "We are extremely relieved that Pat has only suffered bruising and are grateful to surgeon Nick Birch for seeing Pat so swiftly. We are hopeful the pain will settle down this week and that Pat may be available for selection next week."
However, centre David Quinlan is likely to miss the next three weeks of action after suffering a 'stinger' in his shoulder. He will see a neuro-specialist this week but it is likely rest will resolve the issue.
Full-back Rob Laird will miss the next month of action with a hamstring injury but Robbie Kydd should be available for the game against London Irish on Sunday, November 26, and Luke Myring should be available for Saturday's game against Saracens