LONDON, February 17- Andrey Arshavin was one of five first team regulars Arsenal left at home as they flew out Monday to Portugal for their Champions League last 16 first leg clash against Porto on Wednesday.Russia winger Arshavin has been sidelined with a hamstring injury as have striker Eduardo and goalkeeper Manuel Almunia.
Meanwhile midfielder Alex Song (knee) and defender William Gallas (back) have also been ruled out by the English Premier League club.
Long-term absentees Robin van Persie, Kieran Gibbs and Johan Djourou are also absent but striker Carlos Vela returns from a knee injury.
Former Gunners captain Sol Campbell, now in his second spell with the London club, could make his first European appearance for Arsenal on Wednesday since he scored in their 2006 Champions League final defeat by Barcelona in Paris.