The Minnesota Timberwolves routed the Golden State Warriors to advance to the NBA Western Conference finals on Wednesday as the Boston Celtics kept their playoff campaign alive with a blowout victory over the New York Knicks.The victory completed a 4-1 series triumph for the Timberwolves, who return to the Western Conference finals for a second straight season, where they will meet Denver or Oklahoma City for a place in next month's NBA Finals.