Liga MX's Liguilla is underway with eight teams remaining to vie for this season's prize.
For the fifth consecutive season, a qualifying play-in round was held called the reclassification, or repechaje, which expanded the number of playoff spots to 12.
Due to the World Cup, the Apertura season and final phase are being held earlier than normal, with eight teams now set to battle their way through to the final, which is set for October 30 rather than the middle of December.
Here's a look at the schedule, format and teams left in Liga MX's playoff system.
Which teams qualified for the Liguilla?
With Liga MX's current format, four teams qualify directly to the quarter-finals, leaving eight teams to vie for the other four spots in a single-elimination reclassification round.
Those matches were held on October 8-9, with Tigres, Toluca, Cruz Azul and Puebla booking their spots in the quarterfinal.
They'll join the likes of Club America, Monterrey, Santos Laguna and Pachuca, who finished first through fourth, respectively.
Reclassification round results
Tigres 2-0 Necaxa
Cruz Azul 1-0 Leon
Toluca 3-0 Juarez
Puebla 1 (5)-(4) 1 Chivas
Matches will be contested over two legs, with the teams re-seeded after each round.
The competition does not use the away goal rule. If two team are tied on aggregate, the higher-seeded team will advance to the next round. That is until the final, where, if both teams are tied after two legs, the match goes to extra time and, potentially, a shoot-out.
Puebla vs America
Cruz Azul vs Monterrey
Toluca vs Santos Laguna
Tigres vs Pachuca
America vs Puebla
Monterrey vs Cruz Azul
Santos Laguna vs Toluca
Pachuca vs Tigres