Miller went from walk-on to supplemental first-round pick in three years at North Carolina, signing for $1,888,800 as the 36th overall choice in 2017. A career .332 hitter in college, he jumped to low Class A to begin his pro career and batted .332 with 21 steals in 57 games. He posted similar numbers in high Class A to start 2018 but struggled in Double-A during the second half.
Miller's pure hitting ability and on-base skills could make him a top-of-the-order hitter. A plus runner with good instincts, he uses his speed to beat out hits and steal bases. He has yet to demonstrate any impactful power, going homerless last year and slugging .374 in his first two pro seasons, and he will need to show he can elevate and drive the ball at least occasionally in order to become a big league regular.
Though he's quick, Miller is going to have to polish his reads and route in order to stay in center field. His fringy arm makes left field the alternative and he doesn't have the power to profile at that position. He has one of the higher floors among Marlins position prospects but his ceiling may be limited.
Jacksonville Jumbo Shrimp activated LF Brian Miller from the 7-day injured list.
Jacksonville Jumbo Shrimp placed LF Brian Miller on the 7-day injured list retroactive to July 24, 2018.
Miami Marlins invited non-roster OF Brian Miller to spring training.
Jacksonville Jumbo Shrimp activated LF Brian Miller from the temporarily inactive list.
Jacksonville Jumbo Shrimp placed CF Brian Miller on the temporarily inactive list.
CF Brian Miller assigned to Jacksonville Jumbo Shrimp from Jupiter Hammerheads.
CF Brian Miller assigned to Jupiter Hammerheads from Greensboro Grasshoppers.
OF Brian Miller assigned to Miami Marlins.
CF Brian Miller assigned to Greensboro Grasshoppers.