Arsenal are tracking Sporting Lisbon defender Marcos Rojo.
The Daily Mail says the 24-year-old Argentine - who has also been watched by Liverpool, Manchester United and Manchester City - has been booked eight times but has been impressive at centre-back during Sporting's rise to second in the Portuguese league table.
However, he plays left-back for Argentina and that is an added attraction for his British suitors who are all seeking to strengthen that position.
