Michael Phelps is set to run the 200-Meter Butterfly final on Day 4, Tuesday of the 2012 Olympics events. The star swimmer has been less than impressive coming into the London games, but experts suggest this Olympic match is one Phelps just can't lose.

The first full day of games at the 2012 London Olympics has an exciting schedule to catch on NBC live streaming. One of the main events involve a showdown between American swimmers, Michael Phelps and Ryan Lochte. Phelps's coach says the race with the two power athletes will be fantastic, but not an easy win.

The first full day of events at the 2012 London Olympics will feature an exciting schedule. One of the main events involve a showdown between American swimmers, Michael Phelps and Ryan Lochte.

The 2012 USA Olympic Swim Team made a YouTube clip set to Carly Rae Jepsen's "Call Me Maybe" Olympic swimmers Ryan Lochte and Michael Phelps sing the popular song with their team mates in the pool and on their flight headed to Great Britain for the London Games. "It's no secret that members of the U.S. Olympic swimming team work hard, but there's also a little bit of downtime during training camp," the team says of the video on its website.