He was introduced to the media on December 15 , 2010 with his number 28 jersey .
On December 5 , 2010 , Werth signed a seven - year contract with the Washington Nationals worth $126 million , the 14th richest contract in baseball history .
Werth was introduced to the media on December 15 , 2010 with Werth 's number 28 jersey .
On December 5 , 2010 , Werth signed a seven - year contract with the Washington Nationals worth $126 million , the 14th richest contract in baseball history .