finished 1–1. The second leg played was in Irapuato, in the Estadio Sergio León Chavez. Irapuato won the game 1–0, being crowned champion of the Clausura 2011 afterwards. With the Tijuana having won the Apertura 2010 title, the Promotion Final was going to be, yet again, Tijuana vs Irapuato. The first leg was played in Irapuato on Wednesday May 18 and it remained 0–0, with the second leg deciding what team was going to be promoted to the Primera División de la Federación Mexicana de Fútbol (now known as Liga MX). Played in Tijuana's Estadio Caliente, the second leg saw the Club Tijuana being crowned champion of the Promotion Final with a result of 2–1. Thus Tijuana replaced the Necaxa as the new Primera Division Team in Mexico. Liga MX Debut Kicking off their inaugural season in the Primera Division, Tijuana signed José Sand, Leandro Augusto, Fernando Arce, Egidio Arévalo and Dayro Moreno would move to Tijuana for a fee of US$3.5 m. during summer 2011. Tijuana opened the 2011–12 season with a 2–1 home loss to Morelia. American Joe Corona scored the club's first top-flight goal in the defeat. They would earn their first victory as a top-flight club in a 3–1 victory at Santos Laguna on August 6; however, after five consecutive home matches without a victory manager Joaquin del Olmo was sacked and replaced by Antonio Mohamed. After having finished the 2011 Apertura with just three wins against nine draws and five losses, Tijuana would have more success in the 2012 Clasura. Behind the league's top defense (allowing just eleven goals in 17 matches), Tijuana finished with seven wins and seven draws against just three defeats and earned their first playoff berth in the top flight, where they would fall to Monterrey. Apertura 2012 Champions Xolos would continue their strong defense in the 2012–13 Liga MX season. In the 2012 Apertura, Xolos allowed joint-fewest goals with 15 while finishing tied atop the table with Toluca. Seeded #2 in the La liguilla, they would avenge the previous season's defeat to Monterrey before rallying from a 2–0 deficit against León in the semi-finals. They would win the Liguilla over Toluca with a 4–1 aggregate victory, achieving the title in the shortest time after promotion to the top flight in Mexican history. Xolos would falter in the Clausura, finishing in 10th place, two points outside of Liguilla qualification. However, invited