Celtic face a big night in the Champions League as they look to replicate last November's famous win against Barcelona at Parkhead.
The Hoops could do with the points after losing to AC Milan in their opening group game, while the Catalans beat Ajax 4-0.
However, Lionel Messi is out for Barca with a thigh injury.
Newly recalled Ireland striker, Anthony Stokes will hope to start for the Bhoys having impressed so far this season.
He has scored four goals in 11 appearances for Celtics.
In group F Arsenal look for a second win in a row as they host high-flying Serie A side Napoli at the Emirates. However Gonzalo Higuain is a doubt for the game, while wing back Christian Maggio is definitely out.
Arsenal's injury list remains long but Tomas Rosicky is back in contention. Jack Wilshere is a slight doubt with an ankle injury.
In Group E, Chelsea travel to Steaua Bucharest.
The Blues lost their opening round game against Basel despite taking the lead.
Belgium winger Eden Hazard is out injured for Chelsea while compatriot Kevin De Bruyne failed to make the squad. Questions about that decision, prompted Jose Mourinho to walk out of a press conference yesterday after an inconsistent start to the season.