Another provincial cabinet minister is ready to take a run at leadership of the Liberal Party.

Toronto Centre MPP Glen Murray tweeted Saturday morning that he had submitted his resignation as Minister of Training, Colleges & Universities to the Premier.

Dalton McGuinty has said any members of his cabinet who want to take a stab at his job have to give up their portfolios.

Murray has scheduled a "special announcement" at Maple Leaf Gardens Mattamy Athletic Centre Sunday morning.

Government House leader & Minister of Community & Social Services John Milloy will add Training Colleges & Universities to his job dscription.

Friday, the Premier confirmed Kathleen Wynne would go for the leadership, giving up her post as Minister of Municipal Affairs & Housing & Aboriginal Affairs.  Wynne will formally launch her campaign Monday.

Liberals have until November 23rd to enter the leadship race.  The new party leader will be picked January 25-27, 2013.

Some names that could still end up on the ballot--Health Minister Deb Matthews, ex-cabinet ministers Sandra Pupatello, Gerard Kennedy & David Caplan.  Markham mayor Frank Scarpitti is also mulling a leadership run.

Cabinet ministers Dwight Duncan, Chris Bentley, Laurel Broten, Brad Duguid have ruled out running.  So have past cabinet ministers George Smitherman & Michael Bryant & party president  Yasir Naqvi.