The Mexico international will move to Tottenham in a deal which will cost an initial £4.7m and could rise to £8.6m depending on appearances.
Barcelona have retained the right to 20% of any fee should the 19-year-old move on from Spurs in the first two years of his spell with the club, and they will get 10% of any fee if he is sold later in his contract.
Dos Santos broke into the first-team under former boss Frank Rijkaard last season and made 16 starts in all competitions and came on as a substitute 22 times in the campaign. He also scored a hat-trick in the final league game of the season as Barca beat Murcia 5-3.
He’s a promising youngster but reported attitude problems plus the fact that he was behind Messi and Bojan in the pecking order at Barcelona has led to his exit and Tottenham under Ramos have offered him and Barcelona excellent terms for the winger’s services.
Can Giovani dos Santos solve Tottenham’s left-sided problem?