The 23-year-old had initially struggled for form after his £6million summer arrival but has flourished since Pochettino's arrival on the south coast.
"The manager has put his faith in me," Rodriguez said after victory over Chelsea.
"He gives you belief that you should be on the pitch because he's played me and given me a chance.
"All I can keep doing is to try and do my best for him, and for the team.
"I was chuffed with the goal but, like I always say, it's the three points that matter."