Striker Kapocs and defender Rybrink are training with the squad during the first three days of the World Cup qualifying campaign, which runs until the away match against Serbia next Saturday.
The camp is twelve days instead of the usual nine, which allows more players to be brought in.
Both have done well and both have been involved in discussions for squad selection, said national team captain Tony Gustavsson at a digital press conference.
The national team, which now consists of 25 instead of 23 players, gathered on the Algarve coast on Tuesday and held its first training session on Wednesday.
The team will stay in Portugal until Monday, the day before their World Cup qualifier against Italy in Reggio Calabria on Tuesday.
Considering that we have some extra training, it has been important for us to know that we can play as much eleven-a-side as possible in training, said Gustavsson.
Denmark is also in Sweden's four-team World Cup qualifying group for the championship in Brazil next year. The group winner goes directly to the World Cup and there is also the possibility of getting to the World Cup via a playoff.
