CREATE TABLE table_51420 ("Player" TEXT, "Position" TEXT, "Tries" FLOAT, "Goals" FLOAT, "Points" FLOAT)

What is the lowest number of points that Tevita Vaikona scored when making more than 23 tries?
SELECT MIN("Points") FROM table_51420 WHERE "Tries" > '23' AND "Player" = 'tevita vaikona'
SELECT MIN("Points") FROM "table_51420" WHERE "Player" = 'tevita vaikona' AND "Tries" > '23'