Luis Suarez fired Uruguay into the Copa America final with a second-half double to secure a deserved victory over 10-man Peru in La Plata.
Liverpool striker Suarez scored twice in five minutes shortly after half-time to keep Uruguay's hopes of securing a record 15th South American title alive.
Suarez netted his first on 52 minutes after Peru goalkeeper Raul Fernandez spilled a speculative Diego Forlan shot.
The 24-year-old then ran onto a long pass, before rounding Fernandez, to roll in the simplest of second goals and seal a place in Sunday's final where Uruguay will meet the winner of tomorrow's semi-final between Paraguay and Venezuela.
Peru's night was further soured with skipper Juan Manuel Vargas shown a straight red card on 68 minutes after he elbowed Sebastian Coates in the face.
The teams had shared a 1-1 draw in the group stages, however, Uruguay always looked the likely to progress to the final as the 14-times winners handled the occasion far better.
