The best player, bar none, I ever saw in a blue jersey, it would cost a kings ransom to buy him today. Mr, Perpetual Motion, Colin Bell at City was another phenomenally fit player, also it has to be remembered, they played their football on energy sapping mud heaps with barely a blade of grass during the winter and each player would have been expected to play a minimum of 42 games per season, if they were a first choice player.
When you add into that the brutal nature of the tackling back in those days, the lads back then were very fit, just in a different way. For the younger lads who think football was rubbish back then, just have a look at some footage of the Everton team of the late 60’s, or take a look at players from that era like Best, Charlton and Greaves. Sky didn’t invent good footballers.