Updated

Michael Phelps will swim the anchor leg for the United States in Tuesday's 4x200m freestyle relay, scheduled to start at 3:51 p.m. ET. Team USA will lead off with Ryan Lochte, followed by Conor Dwyer, then Ricky Berens, and then finally, Phelps.

The swim could be a historic one for Phelps -- if he medals in the 200m fly at 2:49 p.m. ET (his signature event), a medal in the relay would give him 19 total for his career, making him the most decorated athlete in the history of the Olympics. Just one medal on Tuesday would equal the record currently held by former Soviet gymnast Larisa Latynina.

The 4x200m free relay comes just two days after the U.S. finished second to France in the 4x100m free relay, a race in which Phelps swam from the second position while Lochte had the anchor leg. n that race, Phelps turned in the fasteset split for the American team while Lochte was passed by France's Yannick Agnel.

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