▁new ▁upper ▁deck ▁was ▁added ▁on ▁the ▁west ▁side ▁to ▁bring ▁the ▁stad ium ' s ▁capacity ▁to ▁ 3 3 , 6 0 0 ; ▁this ▁expansion ▁was ▁celebrated ▁with ▁a ▁match ▁between ▁C . F . ▁Mon ter rey ▁and ▁FK ▁V oj vod ina , ▁champions ▁of ▁Y ug oslav ia , ▁which ▁the ▁loc als ▁won ▁ 2 – 1 . ▁ ▁The ▁north ▁end ▁zone ' s ▁" h ors es ho e " ▁was ▁added ▁in ▁ 1 9 8 6 ▁to ▁bring ▁the ▁stad ium ' s ▁capacity ▁to ▁ 3 8 , 0 0 0 ▁seats ▁for ▁its ▁use ▁in ▁the ▁ 1 9 8 6 ▁Mexico ▁FIFA ▁World ▁Cup . ▁In ▁the ▁early ▁ 1 9 9 0 s , ▁lux ury ▁boxes ▁were ▁added ▁which ▁reduced ▁the ▁capacity ▁to ▁its ▁current ▁figure . ▁ ▁In ▁ 1 9 9 1 , ▁the ▁first ▁tart an ▁athlet ics ▁track ▁in ▁Mexico ▁was ▁installed ▁in ▁the ▁Estad io ▁T ec n ológ ico . ▁The ▁original ▁blue ▁track ▁was ▁replaced ▁with ▁a ▁more ▁traditional ▁red ▁color ▁in ▁ 2 0 0 2 . ▁ ▁By ▁the ▁mid - 2 0 0 0 s , ▁with ▁the ▁Estad io ▁T ec n ológ ico ▁being ▁the ▁second - old est ▁ven ue ▁in ▁Liga ▁M X ▁at ▁the ▁time ▁behind ▁Estad io ▁Az ul ▁in ▁Mexico ▁City ▁and ▁manager ▁Miguel ▁Herr era ▁declaring ▁it ▁" ob sole te ", ▁C . F . ▁Mon ter rey