Sieler (undisclosed) is expected to be out "between days and weeks" but is likely to be ready for the start of the regular season, Marcel Louis-Jacques of ESPN.com reports.

MIAMI GARDENS ― Zach Sieler, the real deal, was wearing an aqua cowboy hat as his young son was corralled by wife Hannah during his contract extension news conference. The Miami Dolphins had rewarded Sieler with three more years and $67.75 million.

Miami Dolphins' star defensive end Zach Sieler just earned a new contract extension, and one former player believes he's one of the best defensive players.

Defensive lineman Zach Sieler and the Miami Dolphins have agreed on a three-year contract extension worth up to $67.75 million, including $44 million guaranteed.

Some of the NFL's biggest stars are requesting trades. Meanwhile, Zach Sieler just goes about his business with the Dolphins.

The Miami Dolphins and defensive tackle Zach Sieler have agreed to a three-year extension worth up to $67.75 million, his agents Drew and Jason Rosenhaus told ESPN's Adam Schefter.

Dolphins defensive tackle Zach Sieler sends a confident message after signing a $67.75M contract extension with Miami.

Zach Sieler ended a low-key negotiation, signing a three-year extension worth up to $67.75 million, including $44 million guaranteed, with the Dolphins.

Sieler, like safety Minkah Fitzpatrick, is represented by agent Drew Rosenhaus. Fitzpatrick also got his contract extension earlier in camp after he was traded back to the Dolphins by the Pittsburgh Steelers. Rosenhaus also represents tight end Jonnu Smith, who received a new deal in Pittsburgh through that trade.

At every step in the process, Zach Sieler learned something new. And, at every subsequent step, he realized how much he still didn’t know about playing in the National Football League.

Defensive tackle Zach Sieler didn’t dress. The same goes for receiver Tyreek Hill, edge rusher Jaelan Phillips and fullback Alec Ingold. Based off of the injury report alone, it appeared that the Dolphins could be in for back-to-back drubbings – even if edge rusher Chop Robinson returned.