The Brazilian could finally be heading for the Q-League club weeks after Boro accepted a fee of around £7million for him.
He would become the third man to leave the Riverside Stadium in a matter of days following Stoke's double swoop for Robert Huth and Tuncay Sanli last week.
Few will mourn the exit of a man who has never lived up to his club record £12.7million fee.
He has scored just 13 goals in 49 appearances for the club since his big-money switch from Heerenveen in January last year.