There's a big, serious-looking green box at the top of your league page with the following message:
Please note that on Monday, July 14th the Yahoo! Fantasy Sports team will perform a scheduled site upgrade which is expected to last for up to twenty-four hours. During this time access to all fantasy games will be temporarily blocked. We appreciate your understanding.
We repeat: "Access to all fantasy games will be temporarily blocked."
Don't try to hack into your teams, either, you meddling kids.
There are no MLB games scheduled on Monday, so it's a good day for maintenance. We'll continue to blog as usual.