One certainty heading into the final round of the CONCACAF Champions League is that Mexico will not sweep all of the group titles this year. In fact, for the first time it may not have four teams in the quarterfinals.

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Toluca could be the team left out, sitting third in Group D and needing a win at home against winless CD FAS to assure itself of reaching the knockout round.

Three points separate three teams who are vying for two berths in the quarterfinals, leaving Wednesday's games to determine their fate.

Olimpia and the Puerto Rico Islanders meet at Estadio Tiburcio Carias Andino in Tegucigalpa to determine the group winner.

Olimpia leads Group D with 10 points and can clinch first place with a win or a draw. Puerto Rico can with the group with a victory away from home, something it hasn't done since upsetting the Los Angeles Galaxy in the first leg of the Preliminary Round and something it has only achieved three times in 13 tries.

Although Toluca cannot win the group, the Mexican squad can secure its place with a win against FAS regardless of what happens between Olimpia and Puerto Rico. It can also get through with a draw, so long as Olimpia beats the Islanders.

Olimpia enters its encounter with Puerto Rico having seen its six-match winning streak snapped on Friday with a 2-1 Honduran league loss to Victoria - thanks to a pair of first-half goals by Saul Martinez that rallied the visitors.

"[Puerto Rico] will be more offensive because they need to win," Olimpia coach Carlos Restrepo told El Heraldo.

The two teams tied 1-1 in its first match on August 17 at Juan Ramon Loubriel Stadium in Bayamon. Nicholas Addlery struck for Puerto Rico, while Mauricio Copete netted the equalizer for Olimpia. The Islanders are attempting to qualify for the knockout stage for the second time in three years. Many of the players who were on the squad two years that made the surprise run to the semifinals are back.

"We have to recognize that and they do not change the style while on the road," Restrepo said. "The coach has had time to pick each player who has worked for 3½ years. That makes this a team with tactical obedience."

On Sunday, the Islanders completed a 2-0 aggregate victory over Vancouver Whitecaps to advance to the two-legged USSF Division-2 league final against Carolina Railhawks, which beat the Montreal Impact in the other semifinal series.

Addlery scored a pair of extra time goals to clinch Puerto Rico's berth.

"We were two good teams, two teams prepared, deep and talented so I know everything would be decided on a single opportunity," the Jamaican said.

Toluca, meanwhile, is hoping for a better result at home than its 0-0 draw in San Salvador against FAS on August 18. The Diablos Rojos are third in the Mexican Apertura Group 2 standings following a 2-0 loss to Monterrey Saturday.

Toluca manager Manuel de la Torre should be more at ease with the expected announcement of him being chosen as the new manager of the Mexican national team, now that Monterrey manager Victor Manuel Vucetich withdrew from consideration on Saturday, citing personal reasons.

"Let's wait until the federation itself makes it official, but thank God I'm calm," De La Torre said. "I didn't know what was going on with him."