Houston has made a number of cuts this week and new GM Nick Caserio works to reshape their roster and free up some cap space in the process.
Martin, 27, is a former second-round pick of the Texans back in 2016. He was in the final year of his four-year, $4.77 million contract and set to make a base salary of $1.1 million for the 2019 season when he agreed to a new three-year, $33 million extension that includes $18.35 million guaranteed with Houston.
Martin was owed a $7.25 million base salary and had an $8.75 million salary cap figure for the 2021 season.
According to OverTheCap.com, releasing Martin will free up $6.25 million of available cap space while creating $2.5 million in dead money.
In 2020, Martin appeared in all 16 games for the Texans, making 16 starts at center.