Diego Antonio Reyes Rosales (Spanish pronunciation: [ˈdjeɣo anˈtonjo ˈreʝes]; born 19 September 1992) is a Mexican professional footballer who plays as a centre-back for Liga MX club Tigres UANL.

He joined FC Porto that same year, but spent a majority of his time loaned out to Spanish sides Real Sociedad and Espanyol.

He debuted for the club on 25 April 2010 at the age of 17 in a league match against Santos Laguna at the Estadio Azteca, appearing as a substitute in the 86th minute for Ángel Reyna who scored the game's only goal.

Due to the expulsion of Jesús Molina, Reyes was moved into the midfield, but was subsequently substituted off for Miguel Layún.

[10] Reyes made his debut for Porto on 13 July in the final of the Valais Cup against French club Marseille, coming on as a substitute in the 80th minute of the match.

Fellow Mexican teammate Héctor Herrera also made his debut with Porto in the same match which ended in a 3–0 victory.

[11] On 14 July 2015, Spanish La Liga club Real Sociedad announced they had reached an agreement with Porto over a season-long loan deal for Reyes, with no option to purchase outright.

In 2012, Reyes was a part of the under-23 team that won the gold medal at the 2012 Toulon Tournament, defeating Turkey 3–1 in the Final.

He made his full debut on 25 March 2013 in a 2014 World Cup qualification match against the United States at the Estadio Azteca.

In May 2018, Reyes was named in Mexico's squad for the World Cup, despite being at the time in recovery from a hamstring injury,[22] he was subsequently ruled out of the tournament after not having satisfactory progress.