Miami Dolphins fans are freaking out because they think second-year running back De'Von Achane reported to training looking buff, swole and jacked.

Achane is one of the fastest players in the NFL.

Achane had 7.8 yards per rush as a rookie. That was #1 in the NFL among running backs with a minimum of 100 attempts, far ahead of Christian McCaffrey's 5.4.

But Achane is also much, much stronger than his 5-foot-9, 188-pound frame might suggest.

“Every offense I’ve been in for high school, college, it wasn’t just outside runs. Most of my big runs come from running in between the tackles,” Achane said last season.

Achane has been compared to former NFLer Warrick Dunn because even though he's not very tall he packs a mighty punch.

De'Von Achane of Miami Dolphins looking stronger

This week, general manager Chris Grier specifically cited Achane as a recent draft pick he's proud of.

"Achane was a guy that we were very high on and spent a lot of time getting to know him," Grier said.

Look at the social media reaction to Achane's muscular might:

Joe Schad is a journalist covering the Miami Dolphins and the NFL at The Palm Beach Post. You can reach him at jschad@pbpost.com and follow him on Instagram and on X @schadjoe. Sign up for Joe's free weekly Dolphins Pulse Newsletter. Help support our work by subscribing today.

This article originally appeared on Palm Beach Post: De'Von Achane of Miami Dolphins appears to add muscle for Year 2