Krakouer accepted a one-game ban for rough conduct after Port Adelaide’s JLT Community Series loss to St Kilda, while Impey and Johnson will be serving club imposed suspensions after an off-field incident in December.
“We’ve had a good mix in that forward line,” Power assistant coach Brendon Lade told AFL.com.au.
“We’ll still playing around with a few things with what our best mix is down there.
“Impey and Krakouer and even Johnson, their pressure has been through the roof.
“The other forwards know their roles and what their expectations are if they come into the side.”
White and Monfries will be hoping to overcome minor injuries before their clash with Sydney on March 25, as calf and shoulder complaints respectively have kept the duo out of Port Adelaide’s pre-season hit outs so far.
Despite vacancies in the forward line, the Power are reluctant to throw Chad Wingard permanently back into the forward line after his move into the midfield.
“Chad’s doing really well in the midfield at the moment,” Lade said.
“Him and (midfield coach Michael Voss) are working really hard to get an understanding of what’s needed at stoppages and contests and his running.
“If that keeps going that way, we will probably have a mix of Robbie Gray and Chad both down there at times.”