Basic sub-query in an UPDATE statement

[Harland Oracle]

All:
I am trying to update a 'batting' table with the TEAMNAME from the 'teams' table and I'm getting a 'sub-query contains more than 1 row' error

batting table - TeamName, TeamID
teams table - Team, TeamID
(TeamName and Team are supposed to be the same)

Guess I don't know how to do it...

UPDATE batting
SET TeamName=(SELECT name
FROM teams
WHERE teamID=teams.teamID);