Harry Redknapp is growing frustrated in his attempts to add to his QPR squad ahead of the new Premier League season.

Harry Redknapp is growing frustrated in his attempts to add to his QPR squad ahead of the new Premier League season.

Following Bobby Zamora’s dramatic last-minute winning goal against Derby County at Wembley in May, which secured promotion back to the top flight, Redknapp has been on the lookout for fresh talent.

So far the Rs boss has seen an £8million bid for Steven Caulker accepted by Cardiff City but the England international has plenty of options with a host of Premier League sides chasing his signature.

Redknapp believes a deal to sign Rio Ferdinand on a free transfer will be concluded once the 35-year-old returns from punditry duties in Brazil, but with chairman Tony Fernandes stating he has learnt from past mistakes it appears Ferdinand’s age and wage demands could prevent the deal going through.

Fernandes suggested after the play-off final win that the club would target players from the Football League, but so far a £4million bid for defender Jamaal Lascelles has been rejected by Nottingham Forest and midfielder Craig Bryson has opted to stay at Derby County.

With Redknapp (pictured) scouring the world for fresh blood, a £5million bid for 24-year-old striker Kolbeinn Sigthorsson was rejected by Ajax.

But the Dutch club are set to be tested again with an increased offer from Rangers as they look to secure a deal for the Icelandic international, who has scored 24 league goals in 59 appearances since joining from AZ Alkmaar in 2011.

Ex-Arsenal striker Eduardo is also a target for the Rs boss, with the 31-year-old Croatia international now a free agent having reached the end of his four-year deal with Ukrainian champions Shakhtar Donetsk.

A £5m bid for Ivory Coast right-back Serge Aurier has been rejected by French club Toulouse.

Aurier starred for the Elephants at the World Cup and the 21-year-old is believed to have made it clear to club officials that he has no interest in moving to Loftus Road.

Closer to home, Armand Traore has signed a two-year contract extension.

The Senegalese international appeared to be heading for the exit door when Redknapp took over in November 2012 but, since being switched from his more familiar left-back role to left midfield, he has won over the manager and is now determined to star next season.

He said: “I wanted to stay at QPR and now this is done I can fully concentrate on the challenge that lies ahead.

“I am fully focused on the start of the Premier League season – I’m really looking forward to it.”