 The Midwest and South regions were replaced with the Southeast and Southwest regions, held in New Orleans and San Antonio respectively (sites that were determined when the NCAA was using city names as regional names).The regions reverted to the previous ones in 2012.Selection Sunday is the day when the NCAA Division I Men's Basketball Tournament participants are selected, seeded, placed accordingly, and announced, and on Selection Monday (the next day) the same process occurs for the NCAA Division I Women’s Basketball Tournament.