St George Illawarra Dragons second-rower Joel Thompson has suffered a knee injury and will remain monitored ahead of the fixture against the Sydney Roosters at Allianz Stadium, Moore Park on Monday, June 22.

The NSW Country Origin representative underwent scans after suffering the injury during the 29-16 loss to the Canterbury-Bankstown Bulldogs at ANZ Stadium, Olympic Park last round.

“MRI scans on Tuesday have confirmed a PCL tear to Joel Thompson's right knee,” said Dragons Physiotherapist Dan Lawson.

“He will be monitored throughout the week and a decision on his availability for the round 15 fixture against the Sydney Roosters will be made next week.”

Dragons captain Ben Creagh also suffered a slight ankle strain during the fixture but has since been cleared of any injury.

Dragons High Performance Manager Mark Andrew also provides an update on the team's conditioning and fitness program during the allotted bye round.