Photo: Two Arsenal under-21 stars Macey and Kamara train ahead of Bayern game, one to make bench

Arsenal are preparing for a huge Champions League encounter with Bayern Munich.

Arsenal are preparing for a crucial Champions League clash with Bayern Munich after losing their opening two matches.

Ahead of the big clash at the Emirates, the Gunners called up two teenagers to their Monday training session, one of who is likely to make the bench against the Germans.

Pictured above are midfielder Glen Kamara and goalkeeper Matt Macey.

Kamara is a long shot to be involved, although this is not the first time the Finnish under-21 international has been in training this season, but Arsenal's options in midfield are too plentiful to use him in such a big game.

When it comes to Matt Macey, they can be less picky.

With Damien Martinez and Wojciech Szczesny on loan at Wolves and Roma, Macey may be the club's fifth choice goalkeeper, but he has risen up the pecking order as a result.

Colombian international David Ospina is sidelined with a shoulder injury and did not train, meaning he is unlikely to feature in the Champions League on Tuesday night.

That leaves Macey as the only back-up to Petr Cech, who was controversially rested in the defeat to Olympiakos.

Don't expect Arsene Wenger to repeat this again, but the Gunners cannot afford to have anything happen to the Czech Republic veteran, or 21-year-old Macey will be thrust into action on the biggest stage of all.

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