1 more left join problem :(

[miz]

ok i tried to run this query
[SQL]
$teamusers = $DB_site->query("SELECT * FROM " . TABLE_PREFIX . "user
LEFT JOIN " . TABLE_PREFIX . "session ON(session.userid = user.userid) WHERE user.teamid='$teamid' ");
[/SQL]

this query should get all users which in $teamid and their online status

now query works fine but
if userid show up few times in sessions
then its show up the user few times
but i want it to show each user only 1 time

what am i doing worng ?

thanx for help