Goals from England international Rickie Lambert and fellow striker Rodriguez maintained Saints' unbeaten home record and extended their unbeaten run in the top flight to six games.
|25/1||Southampton are 25/1 with bet365 to finish in the top four|
Former Burnley striker Rodriguez feels Southampton are reaping the rewards of their hard work on the training ground and sees no reason why they cannot build on their impressive start.
"The gaffer has got us working with belief; we know we've got a lot of hard work to do and we're just focusing on the next game." he told Sky Sports.
"The training we do is extremely hard and it's showing on the pitch. We have to be really fit and it's working.
"It's unbelievable [to be third], I didn't realise that but I'm well chuffed.
"We haven't got a limit - the gaffer has put that out to us. We've got to keep working and look to the next game but there is no limit to what we can achieve."