The Blues big man has missed three weeks with a broken thumb he sustained against Geelong in round three, and even last week it was suspected he may miss two more weeks.
But Blues coach Mick Malthouse said it would all depend on how Kreuzer recovered from a light training session at Visy Park on Sunday.
Kreuzer trained with Blues teammates, practising his set-shot kicking while wearing a glove to protect his injured thumb.
"We'll see how he comes up from today," Malthouse said at Visy Park on Sunday morning.
When quizzed further about whether Kreuzer would play, Malthouse said he was still unsure and directed criticism to the team selection process.
"The silly part about selection on a Thursday, which we do (as a club) on Tuesday and Wednesday, for a Monday game leaves all sorts of possibilities because the gap is just too big," he said.
As part of the process, the AFL ask clubs to submit a squad of 25 players - for a Monday game - by Thursday night.
It's a practice Malthouse wants scrapped.
"You don't know what side you're going to end up with on a Monday, when you pick the side on Wednesday," he said.
"I think it's a little bit silly that we have to go through that process."
The Blues have been synonymous with Monday night football since the AFL began trialling the idea in 2010.
Malthouse said he was a fan of Monday night games, and doesn't see why people would be against a slight change in the fixture.
"I'm a fan of national football. And I think that national football is playing any time, anywhere under any circumstance and that's the way it should be," he said.
"You're on the main stage tomorrow night, all of round seven is all but completed, you just happen to be a very worthy side in St Kilda and that's a bonus for the football club in its membership and for its sponsors."
Malhouse said it was imperative the Blues did their best to quell St Kilda captain Nick Riewoldt, who has been in formidable form lately.
"Nick's a wonderful player. I think what's happened with Nick is that a lot of people have underestimated the resilience of a champion," Malthouse said.
"Riewoldt is one of those players - he understands his body, he understands his teammates and he knows if you work hard you get good results.
"We're going to have to be very conscious of him and make sure that we limit the supply to him."
Ben Guthrie reports for AFL.com.au. Follow him on Twitter - @AFL_BenGuthrie
