Finally Michael Phelps announced his retirement, after winning the final Gold Medal in Olympics. It's been a very long time since he held all the gold medals of every Swimming competition under his belt. Whether it's world swimming competition or Beijing Olympics. He always proved his worth to his team and nation. He is unmatched in water. It is so obvious for him that even media assumed that water is his second home. But after this Olympics we won't witness his miraculous performances.