NFL free agency is here, and here is a quick look at what the Houston Texans divisional rivals are doing to bolster their rosters.

Colts add OLB John Simon

The Houston Texans lost another defender after outside linebacker John Simon signed with division rival Indianapolis Friday morning, according to the Indianapolis Star Tribune.

The Colts have agreed to terms with Simon on a three-year deal, according to a league source. Simon, the source said, is in route to Indianapolis and plans to sign his contract later Friday.

The Colts are investing in Simon in hopes he can perhaps seize on an opportunity to produce in a potential greater role.

Titans bolster secondary

Cornerback Logan Ryan has reached an agreement to join the Tennessee Titans, his agent wrote on Twitter.

Quick take: Ryan became expendable after the Patriots agreed to terms with Stephon Gilmore. Tennessee had been relatively quiet in free agency, but in adding Ryan and safety Jonathan Cyprien, they addressed their big need in the secondary. Ryan gives the Titans a physical cornerback who can also contribute in stopping the run game.

Jaguars add CB Bouye

The Jacksonville Jaguars reached a deal with cornerback A.J. Bouye, a person familiar with the deal told USA TODAY Sports' Tom Pelissero.

Quick take: An already-imposing defense is looking even more fearsome after the addition of defensive end Calais Campbell and Bouye. By pairing Bouye with Jalen Ramsey, the Jaguars now have one of the league's best set of starting cornerbacks. The departure is a hit for the Texans, but they still have Johnathan Joseph, Kevin Johnson and Kareem Jackson at the position, though injuries were an issue last season and helped facilitate Bouye's rise.

Jaguars land DE Campbell

Defensive end Calais Campbell agreed to a contract with the Jacksonville Jaguars, a person familiar with the move told USA TODAY Sports' Tom Pelissero.

Quick take: The Jaguars fended off the Broncos for the former Arizona Cardinals star and once again made a big splash in free agency. At 6-8, 300 pounds, Campbell brings a massive, run-stuffing presence to the Jaguars' front. But he also has shown he can rush the passer (eight sacks last season) and brings a veteran presence to a young defense.

Report: Former Cowboy Church to Jags

Safety Barry Church is leaving the Dallas Cowboys to sign a four-year, $22 million deal with the Jacksonville Jaguars, according to NFL Network.

Quick take: Church will replace Johnathan Cyprien on a talented defense that made great strides in 2016. It's a blow for the Cowboys, who could also lose both of their starting cornerbacks in free agency.