But the 20-year-old, who was selected out of a Wyoming high school in the 2011 MLB Draft, has made tremendous strides as he ascends through the organization and is currently hitting .424 with six multi-hit outings in his past 10 games.

"You could see his talent is just kicking in as he's seeing higher-level competition," Savannah manager Luis Rojas told ESPN.com. "He's going to get better and better. Each time he keeps moving up the ladder and sees better competition, he's going to be up right there with it."

Nimmo homered for the first time this season Monday and is slugging .571. He's also recorded 12 runs. 

Nimmo, the 13th overall pick in the 2011 draft, hasn't hit above .248 in his first two pro seasons, but he said he's more adjusted to life as a pro baseball player this season. Nimmo is considered the Mets' fourth-best prospect by MLB.com.

"In Legion ball, you'd face a good pitcher maybe every fifth day or so," Nimmo said, per MLB.com. "In the New York-Penn League, I just skipped a whole bunch of levels and was facing great guys all the time. You can't take any at-bats off. It took time to learn how to approach the game and how to be at 100 percent or close to 100 percent every day, mentally and physically."