London, Sep 7 : Arsenal defender Bacary Sagna has questioned his club's decision to sell two of their best players, captain Robin van Persie and midfielder Alex Song, saying that he understands why suppporters are nervous about the future.

The French full-back is currently recovering from a broken leg and could return to play next month.

Sagna believes Arsenal losing two of their key men in quick succession before the start of the new campaign makes no sense, The Telegraph reports.

"Everyone was expecting Robin Van Persie to leave, but Alex Song, that was a surprise. I don''t understand that at all. It is a big loss for the club. When you see two of the best players from last season leave, you ask a lot of questions. I understand why the supporters are nervous," Sagna told L'Equipe.

Sagna, 29, signed from Auxerre four years ago, and in that time has seen several of his team-mates leave - including duo Gael Clichy and Samir Nasri, who went on to win the Premier League title with Manchester City last season.

The French defender will be heading into the final year of his current deal at the end of the season, and maintains that as yet there has been no talk of an extension.

Meanwhile, Captain Thomas Vermaelen believes new assistant manager Steve Bould has made a big impact on Arsenal''s rearguard, the paper reports. (ANI)