Villalobos positive 25/04/2019 Positive test ID 1331
Villalobos tested positive for the human growth hormone GHRP-6 during an out of competition test. The rider later received a four-year suspension from the UCI.
Teams and people
- Luis Villalobos provisionally suspended after positive drug test, Cyclingnews.com, 18/05/2020
- UCI schorst Mexicaan Luis Villalobos (EF Pro Cycling) voor vier jaar, Wielerflits, 23/12/2021
- Luis Villalobos handed four-year suspension for growth hormone use, VeloNews, 23/12/2021