How many ATP molecules produced in link reaction?

The link reaction, which occurs in the mitochondria, converts pyruvate into acetyl-CoA and produces one molecule of NADH per pyruvate. Since each glucose molecule generates two pyruvate molecules, the link reaction produces a total of two NADH molecules. However, no ATP is directly produced during the link reaction itself. Instead, the NADH generated can be used in the electron transport chain to ultimately produce ATP.