A source previously told MLSsoccer.com that there was a $4 million purchase option in Mora's original loan agreement, but Portland and Pumas agreed to a new figure with the Liga MX side retaining a portion of his rights.
Mora, 27, was on loan with Portland in 2020. He had seven goals and two assists over 19 appearances (13 starts). The forward is a Chilean international with five caps.
With Designated Player Jaroslaw Niezgoda out injured with a torn ACL suffered in November, Mora will continue to see plenty of opportunities to lead the line in Portland. He and US international Jeremy Ebobisse will likely see the majority of the minutes, though Ebobisse has also excelled as a winger during his young career.