FREMANTLE forward Hayden Ballantyne has been ruled out for the remainder of the home and away season after rupturing his pectoralis major tendon on Saturday night.

Ballantyne was subbed out of the 42-point win over Carlton at half-time after suffering the injury while laying a tackle on Marc Murphy during the opening term.

He had his right shoulder strapped and was back on the field during the second term but was struggling to get any range of movement in his right arm.

On Monday, Fremantle said scans had revealed the severity of the injury and the 2014 All Australian would have surgery this week.

On Monday night, Fremantle coach Ross Lyon confirmed Ballantyne would be available in time for the finals.

"It's about a seven-week full recovery. He'll be running so he'll be fit but it puts him and us under some pressure," Lyon told Channel Seven.

It had been a frustrating year for Ballantyne. He has kicked just 11 goals in 13 matches after topping the Dockers' goalkicking last year with 49.

Meanwhile, Lyon said highly regarded assistant coach Simon Lloyd would be able to continue in his role at the Dockers even if he secures a senior coaching position before season's end.

“If Simon said, 'I've got the job, I'm committed (and) I'll work through', you could trust Simon with that," Lyon told radio station 3AW on Monday night.

"That wouldn't worry me at all.

"The club position is, he's contracted, we're supportive but we wouldn't want it to get in the way of our campaign. But we'll cross that bridge when we come to it."

Lloyd, who is one of nine assistant coaches completing the League's inaugural level four senior coaching program, has emerged as a possible candidate for Carlton's senior coaching vacancy.

Lyon said he would not stand in the way of Lloyd being interviewed by Carlton or any rival club.

"I think Carlton made contact with our CEO Steve Rosich and they may have had an informal interview already," Lyon said.

"Nothing would make me happier than for Simon to get a senior job.

"Simon's a really authentic person, and really knowledgeable and would love an opportunity."

Lloyd joined Fremantle as an assistant coach at the end of the 2010 season after working in a number of different roles at Collingwood and Hawthorn.