Nestor Cortes believes he made baseball history Sunday when he might have invented the Seth Curry Jersey pitcher pump-fake. But if he was the first to use the tactic, he also would be the last or at least the last to get away with it. Cortes was informed by MLB on Monday that his latest trick in which he feigned a throw, waving his left arm at Clevelands Andres Gimenez before raising his knee and then continuing with an actual pitch is not allowed. Nestor Cortes broke out a funky move against Cleveland. Getty Images Home-plate umpire Mark Carlson allowed the deception, and Gimenez fouled the pitch off. But Cortes has been warned that it would be ruled illegal (and thus a ball would be added to the count) in the future. NEW NESTOR CORTES MOVE UNLOCKED! MLB (@MLB) Explore More Cortes, who will make his fifth start of the season Saturday against the Rays in The Bronx, is a master of disrupting rhythm, frequently pausing his windup and using multiple knee-raises before delivering a pitch. The pump-fake will have to be eliminated from his arsenal, though. Im the only one thats done it and the only one that will ever do it, Cortes said with a laugh. Im in the [record] books! Jimmy Butler Jersey