Portsmouth have ended their interest in signing £1.7m-rated Kenyan international striker McDonald Mariga.
Redknapp wants to strengthen his squad
Mariga, 20, plays for Helsingborg in Sweden, but due to Home Office rules is ineligible for a work permit as Kenya Kenya are 124th in Fifa rankings.
A player joining a Premiership club must play for a country in the top 70 of the FIFA rankings.
Portsmouth manager Harry Redknapp said: "I don't think I'll be going for him. We wouldn't be able to get a permit."