* Germany hammer Portugal to make last four
* Fromer champs Nigeria overcome Denmark 2-0
* Unfancied Honduras upset South Korea 1-0
* Favourites Brazil beat Colombia (Adds Brazil result, quotes)
RIO DE JANEIRO, Aug 13 (Reuters) - Brazil beat Colombia 2-0 to move into the last four and a date with Honduras, while Nigeria and Germany both won on Saturday to set up an intriguing semi-final line up in men's soccer at the Rio de Janeiro Olympics.
Brazil, who have never won the Olympic soccer title, were nervous, especially in a first half that had 21 fouls and five yellows cards, four of them for Colombia.