Double Olympic swimming champion Rebecca Adlington says Wales' Jazz Carlin will be able to handle the pressure at her first Olympic games.
Carlin, 25, missed London 2012 after suffering with glandular fever, but has secured her Team GB place at Rio 2016.
Adlington believes the experience of winning European and Commonwealth titles will help Carlin in August.
"Jazz can handle the pressure and knows what she is doing on the world stage," said the 27-year-old.
"I really hope that this year is Jazz's time to shine and she can get on the podium and be the athlete we all know she can be."
Commonwealth Games champion Carlin won 800m world bronze and two European Short Course gold medals in 2015.
She is also edging closer to Adlington's British record of eight minutes, 14.10 seconds - which was the former world record - in the 800m.
"[Carlin] has been to World Championships, Commonwealth Games [and] European [Championships] where she has had experiences," said Adlington, who famously won gold in both the 400m and 800m at her first Olympic games in Beijing in 2008.
"She has achieved so much and I remember at the World Championships in 2009 being part of the 4x200m relay team with Jazz, so I was lucky enough to swim some of my career with her."
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Carlin achieved the Olympic qualifying standard for the 400m freestyle with a time of four minutes 4.33 seconds at the British Swimming Championships earlier this month.
That was her third British title at the Olympic trials in Glasgow after also winning the 200m and 800m finals.
Carlin will be joined in Brazil by fellow Welsh swimmers Chloe Tutton, Georgia Davies and Ieuan Lloyd.
Is Chloe Tutton the new Rebecca Adlington?
Adlington says Cardiff swimmer Tutton, 19, has "great potential" after the teenager produced "a world-class time" to break the British 200m breaststroke record in Glasgow and qualify for her first Olympics.
"Chloe is just starting her journey, she was the really big surprise at the trials," said Adlington, who was the same age as Tutton when she won in Beijing.
"All her competitors and rivals will have taken onboard Chloe's swim and really realised that she is a force to be reckoned with."
Adlington says she understands how Tutton must be feeling ahead of her Olympic debut in Rio.
"It happened to myself at the trials and I had the same situation... Going into your first Olympic Games being highly ranked it can be quite a daunting thing," she said.
"But also there is no pressure there and no expectation - you are not defending a championship or anything like that.
"For Chloe, it is a great opportunity for her to go and experience her first Olympic Games."
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