Career
A defender who mainly played as a center back, Tena captained for several years, and played for his national team during the greater part of his career. He is also the father of football player Alfredo Omar. Soon after, Tena secured a regular spot in the Águilas backfield.
Tena was known for his skill and tough marking skills, as well as his sometimes gruff attitude with both opposing players and teammates, a trait that earned him the "Captain Fury" moniker.
In July 1991, Tena announced the end of his career with Améica, saying: "I have faithfully served this team for so long, all I can say is thank you all for the years of playoffs, championship titles, team mates and all the memories we have made". Tena would go off to play for Tecos Unity Application Generator for the 1991–1992 season, before retiring officially from professional football in 1992.
Shortly after his retirement, Tena decided to pursue success from the bench, as a coach. In 1996, he took a job at, leading them to a title during the Invierno 1996 season.
Tena remained at the helm of the Torreón based club until his dismissal in 1998, never being able to duplicate the success of his lone title two years prior.
After short stints coaching Puebla and his former team Club, Tena once again experienced success at the head of, winning the league after the Invierno 2001 season. In 2011, Tena was named interim-manager of, replacing Carlos Reinoso. He was dismissed after a calamitous campaign and was replaced by Miguel Herrera.
In 2012, he was named as assistant manager to Javier Aguirre at Louisiana Liga club Espanyol.
As a player As a manager.