The biggest FIFA World Cup ever, with a record 48 teams set to play a record 104 matches spread out across the U.S., Canada and Mexico, is fast approaching.The three host nations automatically qualified for the field. Defending champion Argentina is back, and four nations — Cape Verde, Curacao, Jordan and Uzbekistan — will make their World Cup debuts.Here’s what to know about the World Cup:Tournament format— All teams are guaranteed three matches in the group stage of the tournament. Teams have been assigned to 12 different four-team groups. The top two teams from each group are guaranteed to advance, as will the eight best third-place teams. Teams finishing fourth in groups are eliminated.— The 32 surviving teams after the group stage will enter a single-elimination tournament, with one exception: The teams that lose in the semifinals will advance to a third place match the day before the World Cup final.

Argentina’s Lionel Messi celebrates with the trophy in front of fans after winning the World Cup final soccer match between Argentina and France in Lusail, Qatar, Dec. 18, 2022. (AP Photo/Martin Meissner, File)

Tournament sites— Group stage: Atlanta; Foxborough, Massachusetts; Arlington, Texas; Guadalajara, Mexico; Houston; Kansas City; Inglewood, California; Mexico City; Miami Gardens, Florida; Monterrey, Mexico; East Rutherford, New Jersey; Philadelphia; Santa Clara, California; Seattle; Toronto; and Vancouver.— Round of 32: Foxborough, East Rutherford, Inglewood, Toronto, Santa Clara, Seattle, Houston, Arlington, Mexico City, Atlanta, Miami Gardens, Vancouver, Kansas City.