Pompey’s new owners will be at Fratton Park on Saturday for the fixture with Chelsea.
Roman Dubov and Vladimir Antonov will be occupying the directors’ box for the Blues’ second pre-season friendly.
The third partner in Convers Sports Initiatives’ ownership, Chris Akers, is currently on holiday and will not be present.
But for Dubov and Antonov it will be the first opportunity for them to see their side in action since buying the club on June 1.
They are sure to be given a tremendous reception, with ticket sales hurtling towards the 15,000 mark.
However, it is not yet clear whether Chelsea owner Roman Abramovic will also be present.
The fixture also represents the first match for new Chelsea boss Andre Villas-Boas.
His side beat Wycombe 3-0 in a behind-closed-doors match at their Cobham training ground on Tuesday.
But Saturday is Villas-Boas’ first official fixture.
That will ensure a bumper turn out from Chelsea fans in the Milton end, as well as the national media.
For the Fratton faithful, though, all eyes will be on the directors’ box.
Pompey’s new owners have kept a low profile since taking over the club from Balram Chainrai.
They have yet to speak to the media or supporter groups, preferring to shun the spotlight.
However, their investment cannot be disputed, with the arrival of five new signings so far.
Around £130,000 has also been spent on pitches at the training ground.
Now they will be publicy seen at Fratton Park for the first time on Saturday.
Dubov’s son, Nikita, is also expected to be present for the first of two home friendlies this pre-season.