They are not guaranteed an automatic berth. They must either win their conference tournament championship or have a win/loss record that is enough for an at-large bid.
To furnish with a champion; to attend or defend as champion; to support or maintain; to protect.
Australia is the defending champion of the cricket world cup 2011
He is world number one, and will be the defending champion for a few events in 2010, but he is not the reigning champion of any major.
Mitch Seaveyis the defending champion.
Jimmie Johnson, who is now 3 time champion now as of 11-19-08.
Serena Williams (USA)
Champion Baseball happened in 1983.
Champion Baseball was created in 1983.