The Bluebirds have been in talks with the 29-year-old, who has been told by Cherries boss Eddie Howe he can leave the Vitality Stadium this month, and he is expected to make the switch to the Cardiff City Stadium in the next few days.
It appears the Welsh outfit have beaten a host of other Championship sides to his signature with Bristol City, Wolves, Fulham, Aston Villa, and Middlesbrough all previously linked with the forward.
Grabban returned from an impressive loan spell at Sunderland last week, where he hit 12 goals in 20 games, and he will hope to revive his career at Cardiff if, as expected, the move is rubber-stamped soon.
The agent of Hertha Berlin left-back Marvin Plattenhardt claims the reported Everton target is staying focused on the World Cup.
West Ham are continuing to hold talks with Swansea about a double deal to sign defender Alfie Mawson and goalkeeper Lukasz Fabianski.
Juventus are still hopeful of signing Joao Cancelo this summer despite failing to agree a deal with Valencia, according to reports.
Atletico Madrid have tied down defender Jose Maria Gimenez to a new five-year contract and doubled his release clause to 120m euros.
England Under-21 goalkeeper Dean Henderson has signed a new contract at Manchester United, the Premier League club have announced.