SYDNEY has suffered a blow to its midfield with Zak Jones a late withdrawal from the team to take on Port Adelaide at the SCG.
Jones trained with the Swans at the SCG on Friday but experienced some tightness in his calf.
The speedster had an interrupted pre-season after having knee surgery last year, and only played one JLT Community Series match before the start of the season proper.
Robbie Fox has come in to the Swans 22.
Sydney's Head of Coaching and Development John Blakey told the club's website that Fox was unlucky to lose his spot after last week's win over West Coast.
"Foxy gives us some good bounce off half back, he is very athletic and that is what he has brought all pre-season," Blakey said.
"We will be looking for him to do that again today."
The Power have gone in as selected.
