PORTLAND — Sporting Kansas City coach Peter Vermes said the scoreless first leg of the Western Conference finals sets up a second leg that’s “truly a final.” Tim Melia made six saves and Sporting survived Portland’s aggressive attack at home for a 0-0 draw on Sunday. The teams now head to Kansas City for the second match Thursday night. The Timbers outshot Sporting 14-9 and had six shots on target but couldn’t break through.