FC Porto hasn't lost away from home this year, and keeping that streak alive on Wednesday at Malaga will put the Portuguese club into the Champions League quarterfinals for the seventh time.
Two-time champion Porto won 1-0 in the first leg three weeks ago, but Malaga should have a full-strength squad, including Portugal left back Eliseu Pereira and midfielders Baptista and Francisco Portillo - all of whom have recovered from injury.
"Porto is a very respectable opponent that is very hard to beat,'' Malaga forward Javier Saviola said. "It's a very physical team that doesn't allow the other team much room to play and has very important players, many of which are capable or reaching deep into rival territory.''
For Porto, midfielder Joao Moutinho should be back from a muscle strain that sidelined him for two weeks. Central defender Ezequiel Mangala is also back from a shoulder injury.
Porto also has recent history on its side. The club has scored in its last six games in Spain.
"We're going to have to squeeze the best we have and give everything to reach the quarterfinals,'' said Malaga captain Sergio "Duda'' Barbosa, a winger on Portugal's national team.