About Spanish Segunda RFEF Group 1
Segunda División RFEF (English: Second Division RFEF), also officially known as Segunda B-Segunda RFEF, is the fourth tier of the Spanish football league system containing 90 teams divided into five groups. It is administered by the Royal Spanish Football Federation. It is the second tier outside the top two professional leagues, the Primera División (also known as La Liga) and the Segunda División, being behind the Primera División RFEF and above the Tercera División RFEF. The division also includes the reserve teams of a number of La Liga and Segunda División teams.
