CREATE TABLE table_28281704_1 (tenant VARCHAR2, country VARCHAR2, stadium VARCHAR2)

Name the number of tenants for russia at the saransk stadium
SELECT COUNT(tenant) FROM table_28281704_1 WHERE country = "Russia" AND stadium = "Saransk stadium"
SELECT COUNT("tenant") FROM "table_28281704_1" WHERE "Russia" = "country" AND "Saransk stadium" = "stadium"