Does success run through the veins? Well, the Miami Dolphins are about to find out. The AFC East club has signed the brother of a two-time Super Bowl champion to support Tua Tagovailoa and pursue a title in the 2025 NFL season.

It seems like time is running out for Tua Tagovailoa to prove himself to the Dolphins. The quarterback recently signed a lucrative contract extension, yet success has not arrived during his tenure in Miami.

The Dolphins keep trying to surround him with talented players. Now, the front office has decided to sign the brother of a two-time Super Bowl champion in hopes of replicating that same formula this year.

Dolphins sign new quarterback to back up Tua Tagovailoa in the 2025 NFL season

The Dolphins do not want to miss the playoffs again this year. The AFC East club came close to advancing last campaign but ultimately fell short and was eliminated at the end of the regular season.

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One of the biggest problems the Dolphins faced was a lack of depth at the quarterback position. With Tua Tagovailoa sidelined for several games due to a concussion, the team had to rely on Skylar Thompson and Tyler Huntley as his replacements.

However, neither quarterback delivered the results the team hoped for. Now, the Dolphins have reshaped their quarterback room in case Tagovailoa suffers another injury, and a new signal-caller has been added this week.

Miami announced the signing of undrafted rookie Brett Gabbert on Thursday. He is the brother of Blaine Gabbert, a 2011 first-round pick who won two Super Bowl titles—one with the Tampa Bay Buccaneers as Tom Brady’s backup, and another with the Kansas City Chiefs behind Patrick Mahomes.

Brett Gabbert was signed by the Dolphins this week

Brett Gabbert was signed by the Dolphins this week

Brett Gabbert becomes the fourth quarterback on Miami’s roster. In addition to Tagovailoa, the Dolphins selected Quinn Ewers in the 2025 NFL Draft and signed Zach Wilson, who returns to the AFC after a brief stint with the Broncos last season.

Who is Brett Gabbert, new QB for the Miami Dolphins?

As mentioned earlier, Brett is the younger brother of Blaine Gabbert, the 10th overall pick by the Jaguars in 2011. Blaine was a starter during his first two seasons, but with a disappointing 5–19 record, he was relegated to a backup role in his third year in the NFL.

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Brett Gabbert played college football at Miami of Ohio and made 53 starts during his career. He completed 217 of 379 passes for 2,291 yards, 21 touchdowns, and 11 interceptions last year. Many believe he could compete for a spot on the final 53-man roster as a backup to Tagovailoa this year.