Union de Santa Fe players will use Viagra for their Copa Sudamericana match against Independiente del Valle in Ecuador. Argentine side Union de Santa Fe will use Viagra to combat altitude when they face Independiente del Valle in the Ecuadorian capital of Quito on Wednesday. The match will take place at the Estadio Olimpico Atahualpa, which lies 2,850 metres above sea level. Watch Serie A, MLS, Nations League, FA Cup and more streamed live on ESPN+ in U.S. Altitude has had an adverse effect on several teams in recent times -- with Argentina losing 6-1 away to Bolivia in a 2010 World Cup qualifier.