Arsenal v Porto; agg 1-2Emirates StadiumKick-off: 19.45 (GMT)TV: Live Sky Sports 2 7pm, Sky Sports HD2 19.00
Arsene Wenger v Jesualdo Ferreira
Most Portuguese managers stand in the shadow of Jose Mourinho, but Ferreira has surpassed even the self-styled 'Special One' to lead Porto to three successive Liga titles. He has also upheld Porto's excellent Champions League record since Mourinho, with the team having qualified for the last 16 in six of the past seven years.
Sol Campbell v Hulk
Two players who have featured only occasionally in recent months for contrasting reasons. Hulk has been banned for four months from domestic competition following an incident in the tunnel after the match against Benfica while Campbell has had to wait for his chance to get back into the Arsenal team and is still being used very selectively by Wenger even after the injury to William Gallas.
With Cesc Fabregas and Aaron Ramsey missing, Arsene Wenger must reshape his midfield and is likely to employ Samir Nasri in the most advanced position behind a main central striker. That forward is likely to be Nicklas Bendtner, although Wenger does also have the option of using Andrei Arshavin as the focal point for his attack and also bringing back Eduardo.
Arsenal (4-1-2-3): Almunia; Sagna, Campbell, Vermaelen, Clichy; Song; Nasri, Diaby; Walcott, Bendtner, Arshavin.Porto (4-3-3): Helton; Fucile, Rolando, Alves, Pereira; Micael, Costa, Meireles; Varela, Rodriguez, Hulk.Referee: Frank de Bleeckere (Belgium).