Zachary Michael Thomas (born September 1, 1973) is a former American college and professional football player who was a linebacker in the National Football League (NFL) for thirteen seasons. He played college football for Texas Tech University, and was recognized as a unanimous All-American. He was drafted by the Miami Dolphins in the fifth round of the 1996 NFL Draft, and played for the Dolphins his first twelve seasons in the NFL. He was selected to the Pro Bowl eight times and recorded over 1,700 tackles.
On February 13, 1999, Thomas signed a five-year, $22.5 million contract (including a $4.5 million signing bonus) to remain with the Dolphins. Thomas' $6.5 million in salary and bonus made him the Dolphins highest paid player, surpassing Dan Marino. In 1999 Thomas had 133 tackles and was All-Pro for the second straight season. The following year he had 99 tackles due to missing 5 games. In 2001 he had 155 tackles, 3 sacks, 2 interceptions 2 forced fumbles and defensed four passes and was a First-team All-Pro for the third time. His numbers were similar in 2002 as he made All-Pro for the fourth time in five seasons.
Thomas signed a five-year, $33.75 million contract extension with the Miami Dolphins on March 27, 2003, that includes a $10.5 million signing bonus and was to extend through the 2008 season.[9] Thomas was entering the last year of the five-year, $22.5 million contract he signed prior to the 1999 season. Thomas responded with 153 tackles and 3 interceptions and his fifth All-Pro selection in six years.
Thomas led the Dolphins in tackles with 165 in 2005 after missing two games with ankle and shoulder injuries; he is also one of three players to record one hundred or more tackles in each of his first ten seasons in the NFL. Thomas was selected to his seventh Pro Bowl appearance in 2006, tied for the third most Pro Bowl appearances in club history; this is also the most of such selections among all defensive players in Dolphins history. He has also been selected First- and Second-Team All-Pro seven times.