Injury Report: Back Four Shuffle For the Munich Match

There's good news and bad news and worrisome news as Arsenal seeks to do the improbable tomorrow and come back from a two-goal deficit -- away goals at that -- in its Champions League Round of 16 tie with Bayern Munich. All is according to Arsenal manager Arsene Wenger at today's pre-match press conference.

The good news: Laurent Koscielny will be available for first-team centerback duties, after missing Saturday's 4-1 win over Everton.

The bad news: Kieran Gibbs was injured late in the Everton match and won't be available to face the Germans -- though Wenger hinted that he'd be back for Sunday's match against Spurs (who have their own hilarious problems in their back four).

The worrisome news: Thomas Vermaelen, who had an adventuresome time this weekend playing center back, may see the start at left back. Wenger called it a "good possibility," meaning that Nacho Monreal's ankle issue is still lingering.

The revolving door defense will be playing in front of Lukasz Fabianski, who was solid against Everton on Saturday in his usual FA Cup goalie role -- he'll be pressed into service due to Wojciech Szczesny's red card suspension, a result of taking down Arjen Robben in the Arsenal-Bayern match at the Emirates on Feb. 19.

Arsenal needs to secure a two-goal margin by the end of regulation tomorrow to keep its Champions League dream alive. A three-goal margin (it could happen!) will put the Gunners into the Round of Eight, scheduled for April 1 and 2, or right on the heels of Arsenal's Three-Match Week of Glory or Hurting (vs. Chelsea on the 22nd, Swansea on the 25th, and Manchester City on the 29th).