Video: Michael Phelps answers questions about comeback speculation By Nick ZaccardiJul 28, 2013, 6:42 PM EDT Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Flipboard (Opens in new window)Click to share on Reddit (Opens in new window)Click to email a link to a friend (Opens in new window) 0 Comments Your browser does not support iframes.Sporting a boot on his right foot, Michael Phelps returned to the scene of his first big splash in major international competition at the world championships in Barcelona.Phelps, retired since the London Olympics, joined NBC for an interview aired during Sunday’s coverage. The question everybody wants to know is — is he retired for good?Phelps was asked about the speculation that he will come back, the reason for the boot and his memories from winning four gold medals and breaking five world records at worlds in Barcelona 10 years ago.Results, recap, quotes from Day 1 of swim worlds