Manchester United defender Guillermo Varela claims Louis van Gaal has a “difficult personality”

Guillermo Varela is a name many Manchester United supporters are only just becoming familiar with.

Having made his first appearance for United's first team in December, the Uruguayan impressed in the right back slot as the Red Devils defeated Derby County in the FA Cup fourth round. Varela has been speaking about his experiences in Manchester, claiming that although he has no problems with manager Louis van Gaal, life under the Dutchman is far from easy for the United players. "The rumours say there is always some kind of problem with the South Americans," Varela told Ovacion (Via Manchester Evening News). "If I tell you the truth, I have had none. When we've had to talk it has been clear and stayed at that. "He has a difficult personality. Sometimes it is not so easy for the players." The 22-year-old, who was the first signing made by David Moyes as Manchester United manager, also gave a brutally honest assessment of the Premier League's Under-21s set-up. Comparing it to the Spanish system, which he experienced when on loan with Zinedine Zidane's Real Madrid's B team (Castilla) last season, Varela describes the English set-up as "not very good". "That year [with Real Madrid B team] was a learning experience and gave me confidence," Varela explained. "I have to be grateful for the support I got. I wish him [Zidane] the best in charge at Real. "Castilla is something different, playing in the Segunda Division or Segunda B, and you have a lot of pressure. They treat you like you are a first-team player and that's impressive. "Here in Manchester the reserves are totally different. The league in which they play is not very good, and more about development. It is very good for the kids who are growing up, but when you reach a certain age it is not so much use to you." After being an unused substitute during United's 3-0 win over Stoke City earlier in the week, Varela will hope to feature in his team's visit to Premier League champions Chelsea on Sunday. As long as his "difficult" manager does not take exception with his comments, that is.