One week after restructuring Antonio Brown's contract, the Steelers decided to get one more deal done before the start of the season.

The team announced on Thursday that David DeCastro has signed a new six-year contract. The new deal wil keep the right guard in Pittsburgh through the 2021 season. CBS Sports NFL Insider Jason La Canfora has reported that the new deal is worth a total of $58 million and includes $16 million in guaranteed money.

Under the terms of his old contract, DeCastro was set to make $8.07 million in 2016, which means the guard will be getting a total of five years and roughly $50 million added to his deal. As the Steelers noted though, DeCastro's new contract isn't an extension. The team tore up his old deal and gave him a new six-year contract.

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David DeCastro just got a nice raise in Pittsburgh. USATSI

The former Stanford offensive lineman was a first-round pick in 2012 who ended up playing his way into a full-time starting role during his second year with the team. Since 2013, DeCastro has started in 47 out of the 48 regular season games that the Steelers have played.

The offensive guard has progressively gotten better during his career and arguably had his best season in 2015, which ended with him earning a Pro Bowl nod and being named first-team All-Pro.

The Steelers were so impressed with DeCastro that they picked up his fifth-year rookie option after the 2014 season. DeCastro's rookie deal has now been torn up though and replaced with the contract he signed on Thursday.

Under his new deal, DeCastro will be pulling in roughly $9.67 million per year, which makes him the third-highest paid guard in the NFL heading into 2016.