Mendes kæmpede mod UFC-fjervægtsmesteren [[José Aldo]] den 14. januar, 2012 på [[UFC 142]], hvor han tabte ved 4:59 i 1. omgang via KO, hvilket gav Mendes sit første professionelle nederlag i karrieren.<ref>{{cite web|url=http://www.mmafighting.com/2012/01/14/jose-aldo-knocks-out-chad-mendes-at-ufc-142-keeps-featherweight|title=Jose Aldo knocks out Chad Mendes at UFC 142, keeps featherweight belt|publisher=mmafighting.com|author=Michael David Smith|date=2012-01-14|access-date=2012-01-14}}</ref><ref>{{cite web|url=http://mmajunkie.com/2014/10/for-chad-mendes-a-few-seconds-a-fence-grab-and-a-long-time-to-dwell-on-a-loss|title=For Chad Mendes, a few seconds, a fence grab, and a long time to dwell on a loss|publisher=mmajunkie.com|author=Ben Fowlkes|date=2014-10-20|access-date=2014-10-20}}</ref>
Levende_personer Sport