ACC presidents are scheduled to meet on a call Monday evening to discuss and potentially take action on expanding to add Cal, Stanford and SMU, sources tell Yahoo Sports.

Three weeks of deep exploration into the three-team expansion plan appears to be at its end, with a determination coming from the meeting or soon afterward. The league needs support from 12 of 15 members to pass the expansion proposal.

Over the last several days, momentum has been building in support of expansion — a change from 2 1/2 weeks ago. In a straw poll of presidents Aug. 9, an expansion vote fell at least one vote short of passing. There were four dissenters: Florida State, Clemson, North Carolina and NC State. Notre Dame receives a vote as the 15th member and supports expansion.