All I can do is assess the value from Manchester United perspective. Whatever Chelsea do, they may have a different criteria, and different financial assets.
I'm going to tell you the story about the geese which fly 5,000 miles from Canada to France. They fly in V-formation but the second ones don't fly. They're the subs for the first ones. And then the second ones take over - so it's teamwork.
To act with a tennis ball and imagine it's a tentacle, or if you're in some kind of wilderness film and you go, 'Okay, we can't have a grizzly bear here, but imagine when you step over the rock there there's a grizzly bear.' I don't know. They're tough moments.

