Young Port Adelaide key forward John Butcher has predicted "great things ahead" for the battling AFL club, after committing to the Power for the next two seasons.

The 20-year-old's new deal, along with a contract extension for ruckman Matthew Lobbe, have given Port a huge post-season boost to follow a horror year on-field and off.

Butcher's late-season emergence was a shining light in a year in which the Power notched just three wins and it was announced the club would need $9 million worth of AFL assistance over the next three years.

Butcher and Lobbe's new deals follow the recent re-signings by Jackson Trengove, Alipate Carlile, Andrew Moore and Justin Westhoff,

Butcher, Trengove and Carlile in particular had been the subject of speculation they could move elsewhere, with Power coach Matthew Primus having feared the club's poor season might have made it harder to retain them.

But Butcher, who played his first four AFL games in the last four rounds this season, impressing with 11 goals and 18 marks, said he felt a great sense of loyalty to the Power.

"The club was good enough to give me the opportunity in the first place and then got me through a tough first year," Butcher said, having been sidelined by a back injury throughout 2010.

"We've got great things ahead at Port Adelaide, with a tight playing group and we all want to be in it together as we take the club back to where we know it should be."

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