The 26-year-old's performances were noted by United scout Tony Jimenez who recommended the commanding centre-back to Keegan as he looks to add at least one defender with quality.
However, West Ham technical director Gianluca Nani is also a fan and could be ready to sanction a bid from the London club.
Coloccini was at Villarreal and AC Milan in the past and has a reputation of being a cultured defender who does not pick up many suspensions.




