Blas Antonio Pérez Ortega (born 13 March 1981) is a Panamanian former professional footballer who plays as a forward for the Dallas Sidekicks in the Major Arena Soccer League.

The following season, he left for Colombia signing with Envigado, scoring a goal on his debut against Independiente Medellin in the process.

For the 2005 season he signed with Cali[3] and remained at the club for two years in which he continued with his goal scoring form.

On 29 May 2007, Spanish Segunda División team Hércules CF signed Super Ratón on a four-year contract in which they acquired 50% of the players rights.

After his impressive display in the 2009 CONCACAF Gold Cup, Al Wasl FC of Dubai was able to secure Blas Pérez services to play in the UAE League[7] based on Al Wasl's new coach Alexandre Guimarães recommendation.

[8] After having played 17 games in the Torneo Bicentenario and 2 in the 2010 edition of the Copa Libertadores and having scored 5 goals in both tournaments, he was released at the end of the season.

[17] Pérez made his debut for Panama in a March 2001 friendly match against El Salvador and, up until his international retirement in 2018, earned a total of 123 caps, scoring 42 goals.

[21] On 23 July 2009, two cars chased Pérez's Nissan 350Z early at the morning while he was travelling along the La Chorrera highway.

[22] Pérez holds a U.S. green card which qualifies him as a domestic player for MLS roster purposes.