The pair trained as they prepare to take on Cologne at the Emirates Stadium on Thursday evening.
Cologne are now bottom of the Bundesliga after three rounds of the season.
"We know that if we have the possibility of winning it, we will return to the Champions League next year, which is one of our targets".
The likes of Manchester United and Manchester City have been spending in excess of £150m for the last couple of years, while Premier League champions Chelsea and even Liverpool made a decision to splash the cash over the summer.
Arsene Wenger seems set to shake up his side for the Cologne game.
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Scroll through the gallery above to see the best pictures from Arsenal's latest training session as seven key first-team players are absent ahead of the Europa League clash with Cologne.
Petr Cech, Laurent Koscielny, Danny Welbeck, Mesut Ozil, Aaron Ramsey and Granit Xhaka were all missing from training on Wednesday morning, rested as Wenger prioritises Premier League football over Uefa's second-tier competition.
Rather than being injured, the seven absentees are thought to be resting.
Jack Wilshere also took part and may make his first Arsenal appearance in 383 days following last season's loan spell at Bournemouth.
Arsenal travel to face reigning Premier League champions Chelsea on Sunday, so a much-changed side was always anticipated. Few youngsters involved in matchday squad too.