QPR remain searching for the first away victory in the Premier League after slipping to defeat at high-flying Southampton.
Redknapp said: “We came back strongly after their goal and I felt we had every opportunity at that stage of the game but their centre-forward produced a world-class goal.
"Southampton are a good side but I felt we stuck at it and we got a bit more belief in ourselves today and we've got to continue to believe."
Next up for Rangers is a trip to West Ham this weekend.