We have seen expansion for the NCAA Tournament recently in men's basketball, and now, men's lacrosse will see 2 more teams added to the field of their NCAA Tournament. Instead of 16 teams vying for a national championship, 18 teams will get the opportunity, however it is unclear if this will go into effect for the 2014 season.
There are still many unanswered questions, mainly because NCAA bylaws require that 50% of the selections consist of at-large bids. There will be 10 automatic qualifiers in 2014, so that would require an additional 10 at-large bids, for a total of 20 teams. The more likely scenario is removing 2 of the automatic qualifiers from certain conferences, resulting in 8 AQs and 10 at large bids. A field of 20 teams in the near future is not out of the question though.
With 18 teams, there will be 2 play in games, which will include the 4 weakest teams in the field. The 2 winners will advance to play presumably the top 2 seeds in the tournament, respectively. There is still a lot to be figured out here, so stay tuned for updates.