( CNN ) -- Robin van Persie says he is ` ` honored '' to have signed for Manchester United . The striker signed a four - year deal with United after finalizing his move from Arsenal . United manager Alex Ferguson hails Van Persie as ` ` a world - class striker '' Midfielder Alex Ferguson could follow Van Dam out of retirement after being linked with Barcelona .
Robin van Persie says he is ` ` honored '' to have signed for Manchester United . The striker signed a four - year deal with United after finalizing his move from Arsenal . United manager Alex Ferguson hails Van Persie as ` ` a world - class striker '' Midfielder Alex Ferguson could follow Van Dam out of retirement after being linked with Barcelona .