9 best Rangers free transfers EVER as Jack Butland mixes it with Weir, Wallace and Boumsong

Rangers' big money buys in the summer have been in the firing line as Michael Beale paid the price for his poor recruitment.

Danilo came up trumps with a late, late winner against Hearts at Ibrox on Sunday and the Brazilian is starting to show his potential after a slow start. Fans have less faith in Cyriel Dessers and Sam Lammers with patience quickly running out in the duo. But while the majority of the new boys have failed to impress there is no question about the one big success and he didn't cost a penny - goalkeeper Jack Butland.

Butland joined the the Light Blues on a free transfer following the expiration of his Crystal Palace contract and has already earned the approval of new manager Philippe Clement, just two weeks into his tenure as boss, with the Belgian shutting down any talk of an exit and vowing to rebuild his Rangers side around the Englishman.

Butland's form has reportedly caught the attention of potential suitors with new Birmingham City boss Wayne Rooney linked with his old England team-mate. Butland put pen to paper on a four-year deal in Glasgow and the Ibrox side have reportedly put a £5million price tag on the goalkeeper in an effort to fend off any interest in the upcoming January window.

Clement insisted he is "really happy" with Butland in his team and hailed the keeper's personality on and off the pitch. The manager also suggested the shot stopper will be a "key figure" for him to build his team around "for the next couple of years". Given his early success, here Record Sport takes a look at some of the best most successful free transfers.

The former Sheffield United man took time to get going but came alive in the Europa League run as he played a key role in helping the side make it to