Think anything with upwards of 60k would do. Emirates, Spurs, United, City etc. not everyone would get tickets but 25k plus per side is fine. In danger of having too many games at Wembley if this one was there as well
What's absolute nonsense in this competition is the semi final being played over 2 legs. I remember Boro last year beating Chelsea at home then getting battered away. Chances of beating a top prem side over 2 legs is neigh on impossible. Much more interesting if the semi was 1 game played at a...