The Arsenal players were training on Monday ahead of the Champions League tie against Barcelona on Tuesday evening.
Arsenal will take on Barcelona at the Emirates Stadium in North London in the first leg of the last-16 tie.
Barca will head into the game as favourites as they have a vastly superior team, but the Gunners should not be underestimated.
Cech is one of the best goalkeepers in the world and has been in superb form for Arsenal so far this season.
The former Chelsea star will have to be on top of his game against Lionel Messi, Luis Suarez and Neymar.
The Barcelona trio are going to test Cech throughout the 90 minutes, and the 33-year-old Czech Republic international cannot afford a lapse in concentration.
Ozil is back to his world-class best, and the Germany international attacking midfielder will be the creative fulcrum for Arsenal.
The former Real Madrid star has created 105 chances in 24 Premier League matches and 11 chances in six Championship games so far this campaign.