Well after all that i'm out !! If i worked it out properly in advance of my last match i would have played defensive tactics but already thought i had qualified over the top team with head to head matches in my favour, didn't take other matches into consideration. Heres the table and results :

W D L gf ga Pts
Valentin FC 3 1 2 10 9 10
guerreiros FC 3 1 2 9 8 10
Celtic FC 3 1 2 11 7 10
Lien FC 1 1 4 6 12 4

M 1 Lien 0 Celtic 2
guerrieros 0 valentin 2
M 2 valentin 0 lien 3 (match not played, defeated club didnt have 11 eligble players ) !
Celtic 1 guerrieros 2
M 3 Lien 0 guerrieros 2
Celtic 2 valentin 1
M 4 guerrieros 2 Lien 2
valentin 2 Celtic 2
M 5 Celtic 3 Lien 0
valentin 2 guerrieros 1
M 6 Lien 1 valentin 3
guerrieros 2 Celtic 1

Obviously out on head to head 3 ways, took me a while to work it out ! Might be handy for the future guys !