The Texans made their biggest splash yet in free agency Friday night, signing former Cardinals safety Tyrann Mathieu to a one-year deal.

Mathieu, the former LSU star, instantly becomes the most accomplished safety the Texans have ever had. He was an All-Pro in 2015, but injuries made him expendable in Arizona. If he can stay healthy, he provides something the Texans have never had at the position -- a versatile playmaker who can be dynamic.

The former LSU star struggled the last two seasons with injuries. He is not the biggest player in the world, and plays with reckless abandon. The best comparison is probably former Colts safety Bob Sanders.

When healthy, however, he is one of the top safeties in the league. It is a good gamble for the Texans, as it is a one-year deal with little risk. If he is healthy and has a big year, they can pay him. If not? They have lost nothing. The secondary should be much better next season with the addition of the honey badger and Aaron Colvin and the return of Jonathan Joseph.

The Texans still have holes -- left tackle, backup QB and tight end -- but they have fixed a lot of issues over the last few days. And adding Mathieu could be a home run.