Sebastian Blanco also scored in the second half for Portland, which didn’t even need Valeri’s clinching goal. The teams had played to a scoreless draw Sunday in Portland in the first leg of their aggregate-goal Western Conference final, and with road goals being the tiebreaker, the Timbers were assured of playing for a championship even when the score was 2-2.
Valeri’s stoppage goal merely allowed the Timbers to begin celebrating a few minutes early.
The Timbers will visit Atlanta United on Dec. 8 to play for the league title. Atlanta beat the New York Red Bulls 3-1 on aggregate to win the Eastern Conference final series.
Daniel Salloi scored in the first half and Gerso Fernandes scored in the 81st minute for Sporting KC, which still has not played for the MLS Cup since winning the 2013 title.
Sporting KC did control the first 45 minutes of the game, much to the delight of a sellout crowd that included Kansas City Chiefs stars Patrick Mahomes, Kareem Hunt and Travis Kelce. But the Timbers turned up the pressure in the second half, knowing any score-draw would send them through.
Blanco provided it when he made a nifty move near midfield and unleashed a driving shot — the first on goal for Portland all game. It somehow found the sliver between the outstretched hand of goalkeeper Tim Melia and the crossbar to knot the game 1-all.
The strike in the 52nd minute was followed by Valeri’s header off a rebound moments later, a goal that not only silenced the crowd at Children’s Mercy Park but led to a rather bizarre scene.
Fans in one corner of the stadium began throwing bottles and other trash at Portland players, and referee Mark Geiger brought both teams to the sideline. Sporting KC manager Peter Vermes then stalked more than halfway across the field to admonish his own club’s fans.
Sporting KC was left needing two goals to win the match and advance, and nearly got one of them in the 72nd minute. Johnny Russell’s free kick from about 15 yards glanced off Felipe Gutierrez’s head and sailed over the net as Portland goalkeeper Jeff Attinella exhaled.
Gutierrez put another shot on goal moments later that Attinella kicked away.
Fernandes finally got one of the goals Sporting KC needed, and the home crowd roared when it was announced that there would be nine minutes of stoppage time. But the Timbers managed to tamp down each attack by Sporting KC, ultimately solving what had been a near-impossible riddle.
Sporting KC had been 15-2-4 in home playoff games, their only losses coming in 1997 and 2011. Sporting KC also had been 12-2-5 at Children’s Mercy Park this season, losing just three times in 48 matches across all competitions in one of the toughest venues in all of Major League Soccer.
The Timbers made it four defeats on Thursday night.