Floodlights, new River players make for Copa Libertadores knockout drama

It is a new Copa Libertadores with a fresh calendar -- and some of the same old problems. The match between Guarani of Paraguay and Argentina's River Plate suffered an 11-minute hold up because of an old fashioned floodlight failure -- not an uncommon event at Asuncion's Defensores del Chaco Stadium.
This was always a game likely to generate more heat than light, though, for two reasons.
One was the fact that two River Plate players tested positive in post-match drug tests towards the end of the...