Arsenal will be hosting Borussia Dortmund, while Zenit St. Petersburg will be flying to the Estadio do Dragao to play FC Porto on matchday 4 of the UEFA Champions League.

Arsenal vs. Borussia Dortmund

Gunners boss Arsene Wenger will be expecting a very difficult night for his side given the caliber of Dortmund, which lost the Champions League during the 2012/2013 campaign by a goal.

"[In 2011] they were short of experience in the Champions League and since then they have reached the final last year, so they will have more confidence," Wenger told uefa.com.

"The structure of the team and the quality of the team is similar."

The Frenchman believes, though, that his side is more superior coming into the match.

"I believe we are much better and our young players have gained experience and maturity. The consistency of our results since May shows our quality," he revealed.

"The feel-good factor is the quality of the team, the solidarity of the team and the desire to do well. We need a special hunger and I believe we have that hunger."

"[German teams] don't hide and we don't hide, so it should be an exciting game. Their efficiency is their quality, their ability to take their chances."

"We go into the game focused on our quality and performance. We have to come out of the match and feel that we have played at our best, and at our best we can challenge anybody."

Meanwhile, Dortmund manager Jurgen Klopp feels that Tuesday's fixture will be a battle of teams playing an exciting and attacking football.

"Arsenal have kept their style despite the criticism. I feel their style has always been modern and now I feel it is working well," said Klopp.

"I've been impressed with Arsenal's development and it will be two teams playing very well playing each other."

Klopp has been very impressed with what star signing Mesut Ozil has been showing since signing with the Gunners from Real Madrid.

"He's [Özil] technically perfect, fast and has developed a drive on goal. He is a very intelligent player and could play in any team," he intimated.

"You don't have to force him in training, it is all natural and that is why it was a great idea from Arsenal. They will be two close games and I think small things will be decisive and we will have to be ready for these small things."

Probable Starting XI:

Arsenal: Szczesny; Sagna, Mertesacker, Koscielny, Gibbs; Arteta, Ramsey; Wilshere, Ozil, Cazorla; Giroud

Out: Theo Walcott, Mathieu Flamini

Borussia Dortmund: Weidenfeller; Großkreutz, Subotic, Hummels, Schmelzer; Sahin, Bender; Reus, Mkhitaryan, Aubemayang; Lewandowski

Out: Sebastian Kehl, Łukasz Piszczek, İlkay Gündoğan

FC Porto vs. Zenit St. Petersburg

Porto manager Paulo Fonseca recognizes that a win would further bolster their chances of making it through to the next round.

"It might be a very important game for us, but it is also a very important game for Zenit. Every team has a chance of going through in our group," said Fonseca.

Our ambition is always the same, no matter who we are up against - we always want to win. Hulk has a good name at this club, and will be well received tomorrow, but that won't affect his or our performance.

Fonseca disclosed that the recent 2-week lay-off favoured his side as they were able to assess and make the needed adjustments on defense.

"I'm happy with how the past two weeks have gone despite the absence of important players who have been with their national teams," he added.

"Our defence was together during this period, which allowed us to get our tactics right and improve the defensive side of our game."

On the other hand, Luciano Spalleti knows that his side is still on the process of rebuilding, he knows that they can compete with the opposition.

"We haven't started well but we have the quality to accumulate points," said Spalletti.

"It's a fairly new squad though everyone is in high spirits and believes they can go far. Hulk is a great player, very skilful, but can still improve."

"I know how much he loves Porto after the time he spent here. Tomorrow he just has to do what he always does: play at a very high level."

Probable Starting XI:

FC Porto: Helton; Danilo, Mangala, Otamendi, Sandro; Josue, Fernando, Gonzalez; Varela, Martinez, Quintero

Zenit St. Petersburg: Lodygin; Smolnikov, Lombaerts, Neto, Ansaldi; Fayzulin, Zyryanov; Danny, Shirokov, Arshavin; Hulk

Out: Vyacheslav Malafeev

Suspended: Axel Witsel

Schedule and Free Live Online Streaming (Link will be provided an hour before kick-off):

Read also: Preview and Live Stream Information: Schalke 04 vs. Chelsea; Steau Bucharest vs. FC Basel

All games will be played on October 23, 2012 - 445 am (AEST)

Arsenal vs. Borussia Dortmund: LINK1 LINK2 LINK3

FC Porto vs. Zenit St. Petersburg: LINK1 LINK2 LINK3