The Basque side suffered a 2-1 defeat in Lisbon last week and will try to secure a victory which will see them progress to the tournament decider in Bucharest.Athletic Bilbao coach Marcelo Bielsa has been boosted by the news that Javi Martinez is available after he missed the match at the Estadio de Alvalade through suspension. Iker Muniain is expected to feature in the starting XI despite sitting out the weekend contest against Racing Santander because of an eye inflammation.Oscar de Marcos, on the other hand, will not take part in the match because of suspension, with Gaizka Toquero tipped to deputise for him in midfield.Sporting coach Ricardo Sa Pinto will not be able to count on Elias, who is ineligible in the Europa League, and on Fito Rinaudo and Alberto Rodriguez, both of whom are injured. Matias Fernandez missed the club\'s last two games, but the Chilean is ready to feature from the start.