The winger looks set to complete a move to the Premier League.
Boro might be making a move for the attacker this week.
Watford are all set to let the Italian leave the club before Tuesday.
The Mexican attacker has joined up with the German side for the new season.
The Argentine has struggled in English football since his move from the Italian capital.
The Ukrainian wing wizard could still move to Everton in the winter.
Tottenham boss Mauricio Pochettino is determined to stick to his principles in spite of the club's underwhelming start to the season.
The Wales international has backed the North London outfit to have a successful campaign.
The Ghanaian winger has had a huge bust-up with Boro boss Aitor Karanka.
The Croatian centre-half has stated that he will work hard to make up for the errors he made against West Ham.