Kenny Jackett will not be taking up usual position on the edge of Pompey’s technical area for a short period of time.
The club earlier revealed that he requires some rest and recuperation following a medical procedure.
But the Blues boss is still planning to work remotely, with his assistant Joe Gallen expected to take on added responsibility.
Nigel Gibbs – who was a team-mate at Watford – will also arrive to help out alongside first team coach Jake Wigley.
Jackett explained: “I need an operation on my forearm and they’re expecting that I’ll need two weeks of recovery after that.
“It is a precautionary one and Joe will be in charge. He’ll be assisted by Jake, while Nigel is also coming in for a short period.
“There are the telephone and video links available and I will be using that. I’m not anticipating being out for any longer.
“We feel that we can negotiate this period as a staff and that the players can still have the best preparation for the upcoming games.
“It’s an important batch of fixtures for us as we approach the run-in and we believe we have the right attitude in our squad to keep pushing hard.”
"“We feel that we can negotiate this period as a staff and that the players can still have the best preparation for the upcoming games."
Pompey head to Bristol Rovers on Tuesday night after plummeting temperatures put paid to their scheduled weekend contest at Crewe.
Jackett said: “Frozen pitches are just too dangerous and so we fully understand the situation – a lot of games were called off around the country.
“There aren’t many Tuesdays left, especially with the EFL Trophy final thrown into the mix, but I don’t think it’s a problem yet and hopefully there aren’t any more postponements.
“We’ve had enough breaks for the players to rest up and get fit, so it’s an exciting period and a big chance for us.
“We were able to train on Sunday because the training ground surface had thawed and was in good condition as we prepare to face Bristol Rovers.
“It’s hard to know tactically what they are going to do because they’ve got a caretaker manager in at the moment.
“We do know their players, though, and the options they have. After that, we concentrate on ourselves.”
Pompey have no new injury concerns ahead of the Memorial Stadium contest, while Jack Whatmough is available again following a three-match ban.
Jackett said: “The only players we have missing at the moment are Alex Bass and Michael Jacobs, while Paul Downing is just coming back.”