TIGRES UANL (MEXICO) AT SOUNDERS FC (USA)7 p.m., CenturyLink Field.TV: Fox Soccer. RADIO: 97.3 FM.NOTES: The match will resolve this two-game aggregate-score quarterfinal series of CONCACAF Champions League. Tigres won the first leg, 1-0. The series winner is determined by most total goals over the two matches, with road goals as the first tie-breaker. That means the Sounders will advance if they win by two or more goals. If Seattle leads 1-0 at the end of regulation, the series would be resolved with 30 minutes of added time, and penalty kicks if needed. Tigres advances with any other result. … Seattle reached the quarterfinal as a No. 3 seed by going 4-0 through group stage. Tigres went 2-0-2, earning a No. 6 seed. This is Seattle’s third appearance in CCL and second trip to the quarterfinals. Tigres is making its CCL debut. … Seattle is 11-10-2 all-time in Champions League, but 2-5 against Mexican teams. … The Sounders will wear their new “Cascade shale” kits at home for the first time. … Approximately 17,600 tickets had been distributed as of Monday afternoon. ABOUT TIGRES: Tigres leads its domestic league with a 7-0-3 record, remaining Liga MX’s only unbeaten team. The club was founded in 1960 in San Nicolas de los Garza, Nuevo Leon. It has won three Mexican Primera Division, two Copa Mexico and two Interliga titles. Tigres qualified for CCL by winning the 2011 Mexican Apertura. Tigres is 1-0 against the Sounders. QUOTABLE: “It’s been a slow progress to get that recognition, but I think over the past few years (MLS) teams have gone (to Mexico) and proven themselves. … I think we’re going to have a good chance.” – Sounders forward David Estrada.NEXT: The series winner advances to the CCL semifinal round next month against the winner of the Houston-Santos Laguna series. Seattle returns to MLS play at 5 p.m. Saturday when the Portland Timbers visit.