Can we see the player’s main stats (goals scored in different competitions and disciplinary points) on the main page of his info ?

Yes, here’s an example on FastTicker:

http://www.rubysoccer.com/game/player_stats/1179

To reach that screen you should click the player’s name and then in the Players Statistics link.

But wouldn’t it be easier for us to see it on the player’s main page ?
I would also like to know if the player played friendly matches in his stats page

I think it’s too much information to display in one single page. We could give it a try. About friendly matches info, that’s a controversal subject…we decided to hide this information so far, maybe we can change that in the future if that’s the general feeling.

Cheers!