Ayshford has a syndsemosis injury in his right ankle with Lawrence suffering a hamstring injury in the loss to Brisbane at Campbelltown Sports Stadium last Saturday night.
Half-back Tim Moltzen will undergo surgery tomorrow after suffering a season ending knee injury.
Forward Matt Bell sustained a tendon injury to his right hand in training in the lead up to the Broncos game. He is undergoing surgery this week and is expected to be sidelined for 6-8 weeks.
On a positive note, winger Marika Koroibete has overcome a foot injury and is available for selection for Friday nights game against the Bulldogs at ANZ Stadium.
Benji Marshall (foot), Rd 9
David Nofoaluma (knee), Rd 9
Braith Anasta (groin), Rd 12
Blake Ayshford (ankle), Rd 14
Chris Lawrence (hamstring), Rd 14
Matt Bell (hand), Rd 15
James Gavet (foot), indefinite
Keith Galloway (pec), indefinite
Lote Tuqiri (arm), indefinite
Tim Moltzen (knee), season
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