The 24-year-old earned his first England cap in November and had been expected to be selected in Roy Hodgson's squad for Brazil but sustained a serious knee ligament injury in the Saints' 4-1 defeat to Manchester City in April.
|8/1||Southampton are 8/1 with PaddyPower to be relegated in 2013-14|
"I know that, once I've done the rehab and done it correctly, if anything, it'll make me physically stronger," he told the Daily Mail.
"I've got time to build muscle and build my legs up to improve. I don't get the time in the season.
"I know mentally it will make me stronger because, at times, I think you need a bit of negativity in your career to overcome it."
Rodriguez is hopeful that he can quickly return to form and establish himself as an England regular.
"That's my aim," he declared. "I always said to myself that I wanted to improve every season that I play. This part of my life is very testing but I feel it's going to make me step up to the next level.
"I've got to think of the future and think: 'this is just a small part of my career'."