The Sun says the winger, 16, joined the European champions on trial earlier this month and played for their famous youth team on Sunday.
He has been at Leeds since the age of eight but has moved to Spain and is hoping to join Pep Guardiola's side.
The Whites still expect to receive a hefty fee if he secures a switch to the Catalan giants.
Kebbie caught the eye as a sprinter in his early teens and was on trial with Manchester United in 2009.
However, he decided to snub approaches from across the Pennines to stay at Elland Road.