FRISCO — Andrew Jacobson and Walker Zimmerman scored in the final two minutes of regulation to lift FC Dallas into 2-2 tie with Sporting Kansas City on Saturday night at FC Dallas Stadium.Jacobson scored in the 88th minute and Zimmerman followed with his first career MLS goal in the 90th to cap the stunning comeback for Dallas (8-3-5), which remains unbeaten at home this season at 7-0-2. Dallas remains atop the Western Conference standings, despite winning just once in its last five matches (1-2-2). After Kei Kamara’s penalty kick goal in the 43rd minute and an own goal in the 58th, Kansas City (6-5-5) seemed to be in good shape, even after going down to 10 men following C.J. Sapong’s ejection in the 68th minute. KC goalkeeper Jimmy Nielsen made four saves and appeared ready to earn his eighth shutout of the year. Dallas had a chance in stoppage time, but Kenny Cooper’s 20-yard blast curled just wide of the right post. The comeback was started by Ramon Nunez, who entered the game in the 74th minute and was making just his second appearance of the season. Jacobson’s header off Nunez’s delivery from 15 yards out beat Nielsen over the shoulder, landing in the upper right corner for his third goal of the season.Dallas kept pressing, and after David Ferreira’s free kick from near the right sideline sailed into the penalty area, Zimmerman headed it off Nielsen’s hand and in.