Leeds Rhinos centre Jimmy Keinhorst could miss the rest of the season after suffering a suspected fractured eye socket.
The German international missed the defeat at Catalans after suffering the injury in the defeat to St Helens last week.
"At the moment we are waiting to see how serious the fracture is," coach Brian McDermott told reporters.
"The worst case scenario is that Jimmy is out for six weeks however we will know more on Monday if it could be less."
The 25-year-old has played 15 games for the Rhinos this season, turning out at both centre and the second-row.
