The Apertura 2019 Liga MX championship stage commonly known as Liguilla (mini league) was played from 27 November 2019 to 29 December 2019. Due to finalist Monterrey participating in the 2019 FIFA Club World Cup, the final was postponed to 29 December from 15 December. A total of eight teams competed in the championship stage to decide the champions of the Apertura 2019 Liga MX season. Both finalists qualified to the 2021 CONCACAF Champions League.
The following 8 teams qualified for the championship stage.
In the following table, the number of appearances, last appearance, and previous best result count only those in the short tournament era starting from Invierno 1996 (not counting those in the long tournament era from 1943âÂÂ44 to 1995âÂÂ96).
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<section begin=Quarter-finals />
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Morelia won 5âÂÂ4 on aggregate
Necaxa won 6âÂÂ2 on aggregate
Monterrey won 6âÂÂ3 on aggregate
América won 5âÂÂ4 on aggregate
<section begin=Semi-finals />
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Monterrey won 3âÂÂ1 on aggregate
2âÂÂ2 on aggregate and tied on away goals. América advanced due to being the higher seed in the classification table
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3âÂÂ3 on aggregate. Monterrey won 4âÂÂ2 on penalties