St George Illawarra prop Michael Weyman will challenge his grade one striking charge at the NRL judiciary.

Weyman was charged for raising his elbow whilst taking the ball up just after half-time during the side's 34-16 win over Brisbane on Friday.

The NSW representative will face a one-match ban if found guilty of striking.

Weyman's case will be heard from 7pm on Wednesday night at NRL headquarters, an hour after Manly's Brent Kite challenges his grade one careless high tackle charge.

Kite, like Weyman, is facing a one match ban if found guilty.

Weyman's charge comes on top of injuries to key props Matt Prior and Jarrod Saffy and New Zealand Test backrower Jeremy Smith who are all facing extended stints on the sidelines.

Smith and Prior were both diagnosed with strained posterior cruciate ligaments and will be out for four to six weeks while Saffy suffered a high ankle sprain and will be out for a similar period.

North Queensland hardman Luke O'Donnell's minute of madness against Wests Tigers will see him miss the Cowboys' next three NRL matches.

O'Donnell entered an early guilty plea to a grade two dangerous contact charge for an ugly grapple tackle on Beau Ryan in the 40th minute of last Saturday's 23-16 loss at Dairy Farmers Stadium.

The charge came during a manic period where the NSW Origin backrower gave away three penalties within 80 seconds and confronted referee Gavin Badger over the calls.

O'Donnell will miss the Cowboys' clashes with Newcastle, Parramatta and Melbourne but is still available to play if selected by Australia for the May 7 Test against New Zealand.

South Sydney's Ben Lowe will miss one match after taking the early guilty plea on a grade two careless high tackle charge, as will Eels winger Joel Reddy, who entered a guilty plea for a grade two striking charge from Monday night's 24-14 loss to Canberra.

Newcastle's Junior Sau entered a guilty plea on his dangerous contact charge but will escape any ban over the incident.

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