The NFL’s spring meeting kicks off Monday in Boston, and the big item on the agenda will be the announcement of the host cities for Super Bowls L and LI (after the 2015 and 2016 seasons).

San Francisco and South Florida are vying for Super Bowl L—the 50th game—and the loser of that bid will go up against Houston for Super Bowl LI.

Considering South Florida was recently unable to secure the tax dollars it needed for a major renovation at Sun Life Stadium—the Florida Legislature opted not to vote on the bill—San Francisco is regarded as a heavy favorite to win the bid for Super Bowl L.

For the same reason, Houston is considered the favorite to win the Super Bowl LI bid.

The host cities will be announced at 2 p.m. ET Tuesday on the NFL Network.

The 49ers are scheduled to open their new stadium in Santa Clara in 2014, so it will be fully ready to host the Super Bowl after the following season. The Bay Area has hosted the Super Bowl once before—at Stanford Stadium following the 1984 season.