[ringleader]

Gather up some of images of these football clubs.
Upload them to your images/avatars folder.

Create a new profile field in your admin panel.
Use a single-selection menu and add the names of
Make sure the list of options matches the name of the images you got earlier (without the .gif or .jpg bit at the end).
Select the Display Page as Options:Other

Go to 'User Profile Field Manager' in Admin Panel
Find the profile field you made and note its number (i.e. field12)

Go to Styles/Templates in the Admin Panel

In forumhome_loggedinuser template
FIND

$loggedin[musername]

PLACE BEFORE

<if condition="$post[field12]">
<img src="images/avatar/$post[field12].gif" />
</if>

Don't forget to replace the 12 in $post[field12] with the number of your profile field.