Interesting about the 4th sub.
Players are viewed as assets by clubs these days, and we are getting more and more rules to protect those "assets".
I see this as a positive, but at the same time, I miss the physical aspects of the game.
It's not often we see a player "put in the stands" by a crunching (legal) tackle these days, and I miss that.
As well as that, we still see snide tackles intended to injure by some sides, who seem to get away with it all the time.
I saw 3 pretty horrible tackles in the Barcelona 1st leg, including 1 studs up (yellow) and the scissor tackle on Keita which eventually put him out of the game.
Consistency is needed.
I think we'll see a pretty physical, but fair match in the final.