Arsenal's former first choice goalkeeper Manuel Almunia, is one of seven players leaving, the club confirmed on Tuesday.
Meanwhile, England and Arsenal midfielder Jack Wilshere, who will miss next month's European Championship, continued his rehabilitation from injury with a successful knee operation, Arsenal said on Tuesday.
Wilshere, 20, who missed the entire 2011-2012 season, had the surgery in Sweden and is expected back in England to continue his recovery later this week, the club said on its website (www.arsenal.com).
Frustrated Hargreaves to quit City
Former England international Owen Hargreaves is leaving Manchester City at the end of his one-year contract, the Premier League champions said on Tuesday.
The 31-year-old joined City in August after an injury-plagued spell at Manchester United but he made just four appearances, scoring one goal in the League Cup win over Birmingham City.
After being released by United the former Bayern Munich player posted a training video of himself on the internet in the hope of generating interest.
City offered Hargreaves the chance to resurrect his career but he failed to reproduce the form which earned him 42 caps and made him one of England's best players at the 2006 World Cup in Germany.