PORT ADELAIDE defender Dan Houston has been cleared of any further injury to his shoulder following a heavy collision during Saturday night’s Showdown win over the Crows.

Houston was subbed out of the game in the third quarter, after re-aggravating an AC joint injury he sustained three weeks ago. The 23-year-old will be monitored throughout the week to determine his availability for Saturday night’s clash with the Western Bulldogs.

Midfielder/forward Zak Butters began running last week as he continues to progress his rehabilitation from a left ankle syndesmosis repair, but his return will be delayed due to the ongoing recovery of an associated nerve injury around his knee, sustained in the initial incident against the Tigers in Round 4.

The nerve injury has resulted in some lower leg weakness that, although continues to improve, will prolong the rehabilitation process'

Defender Lachie Jones, who also had an ankle syndesmosis repair, is progressing well through his rehab and is on track to push for selection in round 10.

Xavier Duursma is progressing well following surgery to repair the lateral ligament in his right knee, and is expected to start running again next week.

Forward Ollie Lord has been sidelined by a bout of appendicitis. The 19-year-old had his appendix removed last week and he is expected to be miss about three weeks of football.

Port Adelaide faces the Western Bulldogs at Adelaide Oval on Saturday night from 7:10pm ACST.

The team will be named on Friday evening at 5:50pm ACST.

Injury list

Trent Burgoyne – hamstring (4-6 weeks)

Zak Butters – ankle (TBC)

Xavier Duursma – knee (8-10 weeks)

Dan Houston – shoulder (test)

Lachlan Jones – ankle (1-2 weeks)

Ollie Lord – appendix (2-3 weeks)

Jackson Mead – spleen (TBC) 

Jake Pasini – shoulder (6-8 weeks)

Tom Rockliff – knee (6-8 weeks)