San Martín de San Juan

Its first appearance was in the 1970 Nacional championship, finishing bottom of the group after winning only four of 20 games.

They secured their promotion on the final match-day, when they beat Ferro Carril Oeste 3-0.

It currently plays most matches in the Estadio Ingeniero Hilario Sánchez, which has capacity for 19,000 spectators.

It sometimes plays major games (notably against Boca Juniors and River Plate) in the Estadio San Juan del Bicentenario, which has capacity for 25,000 spectators.

[citation needed] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.