MADRID, April 8 (Xinhua) -- Rayo Vallecano has a chance to make European history on Thursday when it hosts AEK Athens in the first leg of its UEFA Conference League quarterfinal.

The tie gives Rayo a chance to reach a European semifinal for the first time after playing in the quarterfinals of the UEFA Cup in the 2000-2001 season, when it lost to Deportivo Alaves.

The side from the working-class Madrid neighborhood of Vallecas goes into the game after taking a big step toward La Liga survival with a 1-0 home win over Elche on Friday, and coach Inigo Perez will have virtually his full squad available, with the exception of wingers Fran Perez and Ilias Akhomach, who have slight physical problems.

AEK Athens will provide a difficult test, with the Greek side immersed in the title race after an impressive away win over Olympiakos at the weekend.

The visiting side has been tough to beat this season, with just five defeats in 47 games in all competitions.

The highly rated Inigo Perez has tended to rotate his team between La Liga matches and the Conference League and is likely to continue doing so on Thursday, with players such as Gerard Gumbau, Alfonso Espino, Ivan Balliu, Pedro Diaz and perhaps Nobel Mendy coming into the starting lineup.

Celta Vigo is in Europa League action on Thursday with a quarterfinal first leg away to German side FC Freiburg, which currently sits eighth in the Bundesliga.

Celta's win in Valencia last weekend lifted the club to sixth in La Liga, just one point behind Betis, which is in Europa League action on Wednesday, and the club from northwestern Spain has an excellent chance of finishing fifth, which could bring a place in next season's Champions League.

Coach Claudio Giraldez recently extended his contract with Celta and will have talismanic striker Iago Aspas available for the game, along with Matias Vecino, but he will be without central defender Carl Starfelt and midfielder Hugo Alvarez, who suffered a twisted ankle in Valencia. ■