QPR are chasing Tottenham winger Aaron Lennon today.
Sigthorsson, 24, is a long-term target for Rangers, who have put the ground work in since last season and are confident of doing a £5million deal.
Redknapp is also hopeful of getting former England winger Lennon, who was left out of Tottenham's squad for their loss to Liverpool on Sunday, on a season-long loan.
The Hoops have also moved for one of Lennon's colleagues in the White Hart Lane midfield - Sandro.
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