I think it's only fair that we clear up this Rojo is ill-disciplined thing.
Yes he is lacking in discipline but he's not as bad as some people here have made him out to be. In fact he's been improving. I'd like the opinion of @Sly to maybe help me out with this.
I´d like to give encouraging words but Rojo is a nutcase. Some of his tackles are mind boggling. I think it comes from his aggressive nature. Heinze was the same in the few games i saw from him at Sporting. He also has to cut the arguing with the refs stance all the time. Portuguese refs are more permissive. English refs won´t tolerate that. Van Gaal will have to do alot of physicological work with Rojo. Sometimes there absolutely no need to be so aggressive. I think his overall game would benefit from that. Keeping his cool and concentration in crucial moments of the game