Graeme Souness believes Lisandro Martinez will fail at Manchester United and doesn't think the defender is special at anything.
Martinez arrived at Old Trafford from Ajax this summer in a deal worth up to £57million and came in for criticism as United lost their opening two games of the season, shipping six goals.
As a result, defensive partner Harry Maguire was dropped and despite Martinez retaining his place alongside Raphael Varane, the vultures have been circling for the Argentine with many referring to his 5 ft 7in frame.
Souness believes Martinez's height will cause further problems down the road, particularly when he faces more physical strikers.