Gore is a limited playmaking threat at this stage of his career. He averaged less than four yards per carry each of the past three seasons with the Indianapolis Colts and hasn't had a single run over 22 yards since 2015.
The 34-year-old rusher remains a stabilizing force in the backfield, though. He's appeared in all 16 regular-season games for seven consecutive years, dating back to his time with the San Francisco 49ers, and has topped 250 carries in each of those seasons.
It's rare for an NFL player, especially a running back, to remain effective into their mid-30s.
In December, he explained the mindset that's allowed him to continue playing long after many of his contemporaries from the 2005 draft retired, per Mike Wells of ESPN.com.
"I think I'm showing people that if you love what you do, it shouldn't matter what age [you are]," Gore said. "As long as you train and love to compete, you can do whatever you want."
He added: "I've been told since I was 28 what I can't do or will I fall off this year, and I’m still going and still having fun and showing people on film that I still can play this game."
Gore, a third-round pick of the Niners in 2005, will enter his 14th NFL season with 14,026 rushing yards, 3,672 receiving yards and 94 offensive touchdowns.
Signing with the Dolphins brings his career full circle. He was born and raised in Miami, shined at Coral Gables Senior High School and starred with the University of Miami Hurricanes at the collegiate level before earning five Pro Bowl selections in the NFL.
Now Gore is back home, where he should compete with Kenyan Drake for the starting job during training camp and the preseason. They'll likely end up in a pretty even timeshare, regardless of which back is out there for the first snap.