. "The 1972-73 Klass A group 2 season is the 1972-73 season of the Vtoraya Liga. A new rule established on that year forces the teams taking part in the Klass A group 2 leagues to align at least three players younger than 18 years old and at most six players over 27 years old."@en . . . . "1972-73 Vtoraya Liga season"@en . "The 1972-73 Klass A group 2 season is the 1972-73 season of the Vtoraya Liga. A new rule established on that year forces the teams taking part in the Klass A group 2 leagues to align at least three players younger than 18 years old and at most six players over 27 years old."@en . .