This time, a Tigres win was too much for Monterrey.
Rayados manager Diego Alonso has been let go after a 2-0 loss on Saturday to the club's fierce crosstown rival, Monterrey announced on Monday.
"We recognize, we value and we thank Diego and his team for the work and for the huge commitment shown in the search for the maximum sporting objectives that always are the obligation of this institution," a club statement read. "We wish Diego and his team the best of success in their future projects."
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Monterrey stuck with Alonso's predecessor Antonio Mohamed even after a loss in the 2017 Apertura final against rival Tigres.