New Zealand Olympic swimmer Glenn Snyders is shocked at the news of the sudden death of world champion Alexander Dale Oen.
The 26-year-old Norwegian won the 100m breaststroke title at the world championships in Shanghai last year and was regarded as the swimmer to beat in the breaststroke events at the Olympics.
Snyders who had raced against Oen many times, is stunned.
"It's a very sad day. I've known Dale for a few years now and we got pretty close last year, just a very sad day."
Snyders has raced Oen many times in recent years and says he was a role model for many.
"When I've known him he's always been such a nice guy, a good ambassador to the sport... he was a good medal prospect for London and I think that's just very sad now that he doesn't get that chance."
It's believed Oen suffered a heart attack.