Swimming - Ageless Ervin ready to keep going

By Chris Gallagher RIO DE JANEIRO (Reuters) - No one would blame Anthony Ervin if he walked off into the sunset after triumphing in the same Olympic event he won 16 years ago, but the 35-year-old U.S. swimmer has no intention of slowing down. Basking in the glow of the gold medal he won a day earlier in the Olympic 50 metres freestyle, Ervin -- now the oldest swimmer to win a men's individual gold -- said retirement was not on his mind and he would keep going for as long as possible. "I can guar