EMBATTLED St Kilda forward Fraser Gehrig has conceded his body is no longer standing up to the rigours of league football, and will sit down with coach Ross Lyon this week to discuss his immediate playing future.

Gehrig, 32, briefly retired at the end of last season before asking the Saints to redraft him following a change of heart.

The powerful forward has since managed five below-par performances this year; the last of which came against Collingwood on Friday night where he booted just one goal and picked up seven disposals.

Gehrig told Channel 10's Before The Game on Saturday he wants to play on this year, but is finding proceedings increasingly difficult. 

"I do [want to play on], but I came back and people said, 'Why did you come back?', and I came back to play finals football and hopefully play in a premiership," he said.

"I'm struggling at the moment, and whether I go on, I don't know. But that's always been my goal, and it's a lot further than what it was this time last year.

"We'll see what the future holds when we chat during the week."

Gehrig said a decision would be made when he meets with Lyon, after the Saints' coach directly questioned the spearhead's future after Friday night's game.

The player affectionately known as the 'G-Train' conceded his body hasn't responded the way he thought it would this year, and is the first to admit his form isn’t up to standard.

"I won't lie; it's been a battle," he said.

"The body probably hasn't responded the way I would have liked it to have. The club knew and I knew at the time when I decided to come back, I needed a lot of things to go right for me.

"I don't think I've been contributing enough to the side.

"The team's not flying and there's a lot of blokes who can put their hand up and be accountable for the way we're going. We're 4-4, and still in a reasonable spot, but we could be a lot better.

"I'll put my hand up to be accountable and I'll have a chat with Ross this week."

Gehrig said he had a "good pre-season" but was struggling to keep up with the game, which he believes has become "quicker and harder" in the past 12 months.

He also said the impending decision on his future will be made taking aspects such as list management into consideration.

"It's always depended on the team, injuries, stuff like that, how my body holds up, and my body is not holding up great," he said.

"Nick Riewoldt … we've had a few injuries down there and it comes down to list management and whether I feel I can get myself for consecutive games.

"You've got young guys playing well, and we've got a really great seconds side at the moment in the Casey Scorpions with kids like Jarryd Allen and Matthew Ferguson that are flying, and they probably deserve their chance at some stage.

"Ross and I will work out what the future holds, and shake hands and be good mates.

"We'll probably have a talk about the shares and life in general as well, but that's the way it's always been."