Get ready for a busy four days before the 6 p.m. ET trade deadline Monday. In what one executive calls “a crazy sellers’ market,” the prices for bats and relievers have been sky high. That could lead to a wild Monday, as the boatload of buyers, who have been waiting for prices to drop, realize sitting out the trade deadline is not an option. Swallow hard and pay up—or watch your competitors pass you by. As the market continues to evolve, here are the 10 biggest pressure points that will drive it: