NFL roster moves: Arizona Cardinals sign DE Josh Mauro from Steelers practice squad

Arizona Cardinals general manager Steve Keim likes to "churn the bottom of the roster," trying to always find someone else for the last few roster spots who is a better option than the players they have.

On Friday, the Cardinals announced one such roster move, as they signed defensive end Josh Mauro off the Pittsburgh Steelers practice squad and release linebacker Thomas Keiser.

Mauro (6-6, 282) was signed by the Steelers as an undrafted rookie free agent out of Stanford this past May. He spent preseason with Pittsburgh until he was released on August 30. He was re-signed to the Steelers practice squad the following day.

While at Stanford, Mauro played in 48 games and recorded 81 tackles, 11 sacks, 21.5 tackles for loss, two forced fumbles, one fumble recovery and one interception. He started 11 games as a senior in 2013 and set career highs with 51 tackles and 12.5 tackles for loss.

Mauro will wear jersey #73.

Keiser was claimed off waivers after final cuts and played well in the season opener against the Chargers, his former team. After that, he did not play particularly well and has not dressed the past several weeks, landing on the inactive list.