Remember there are two Old Traffords - the cricket ground is a bit closer to Chorlton and I don't think is represented in the route. What is there, and as shown above in the thread, is the football stadium, which has its own station (and whose position backing onto the Liverpool-Manchester line has been a thorn in United's expansion plans for decades). The stadium in-game is a pretty fair representation of the IRL ground.
The man utd stadium was made by a man utd fan so he probably put extra effort in (but that's not me saying his other work is bad of course )
Oh does Manchester have a football team? Seriously, sort of, I believe the expression is "woooosh". (Must remember to tell my mother about this- she has very little interest in footy but is Liverpudlian so will appreciate the double diss.) The cricket ground is on the other side of the line somewhat further away so not modelled. Ludlow Racecourse is also in the Welsh Marches BTW- that's probably the one I was trying to remember earlier.
Online sarcasm with no sign that you're being sarcastic will often get sincere replies, especially because people who dislike football seem to take a strange pride in that! Give my regards to your mother, though.