Henderson, the former Liverpool and England captain, has already made his presence felt with the Bees since joining the team in the summer.
Redknapp believes Henderson's early success at Brentford should not be a surprise to anyone in the football world.
Henderson's return to the Premier League after playing in Saudi Arabia and Amsterdam raised some eyebrows, especially considering the Bees lost their manager, captain, and two key strikers over the summer.
Despite this, Redknapp thinks Henderson would have been one of his top choices to sign if he were in charge over the summer.
Redknapp sees Henderson's experience as a valuable asset to the team, particularly in a season where stability is crucial.
He believes Henderson's presence will be key in helping Brentford avoid relegation and stay in the Premier League.