PORT ADELAIDE defender Tom Jonas is expected to miss at least four weeks of football after suffering a knee injury in the win over St Kilda on Saturday evening. 

Jonas limped off in the third quarter after hurting his left knee while being tackled. 

He will undergo an arthroscopy in the next 24 hours to remove a floating loose body from his knee joint. 

Matthew Broadbent and Jake Neade will be assessed after suffering foot and knee injuries respectively while playing in the SANFL for the Magpies. 

Defender Jasper Pittard will need to prove his fitness to resume after he wasn’t risked against the Saints because of hamstring soreness. 

Small forward Sam Gray could feature against Fremantle on Sunday afternoon if he has been able to shake off an ankle niggle which kept him on the sidelines in Round 16. 

Injury List 

Tom Jonas – knee (4-6 weeks)

Jasper Pittard – hamstring (assess)

Sam Gray – ankle (assess)

Jake Neade – knee (assess)

Matthew Broadbent - foot (assess)

Joe Atley – back (2-3 weeks)

Joel Garner – shoulder (season)

Willem Drew – heel (season)

Hamish Hartlett – knee (season)

Sam Hayes – knee (season)

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