With Luke Shaw's recovery from surgery likely ruling the player out for the remaining matches of the season, Manchester United have had to rely on Alex Telles to be their main left-back. However, the Brazilian's performances have not endeared him to the fan base.
When Telles was signed from FC Porto many expected him to challenge and even usurp Shaw for the number one left-back spot, but the Englishman then went on the best run of form in his career without major injury. This gave Telles no chance to prove himself.
This season, on the other hand, Shaw has suffered a number of injuries and so there has been an increased reliance on Telles and so far United fans feel short-changed by what was on paper a cheap transfer. Going forward the left-back has not shown any of the ability that he did in Portugal and his defensive work has been questionable.