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Port Adelaide midfielder Travis Boak has today undergone surgery to release the plantar fascia in his right foot after suffering soreness since the start of the season.

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The 23 year-old is expected to be sidelined for up to four weeks.

Port Adelaide General Manager-Football, Peter Rohde, says Boak had been suffering plantar fasciitis since the end of pre-season and it had started to affect his capacity to train.

“Travis has had this foot problem on and off since the lead up to Round 1 and in the last couple of weeks it has given him a lot of trouble,” Rohde said.

“He hasn’t been able to train for two weeks and he’s had to have pain killers to be able to play against the Gold Coast and against Carlton on Saturday night.

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“Sometimes these injuries heal naturally but with his foot getting sorer in all sorts of spots we elected to have surgery.”