Brendan Donovan -- Prospect Evaluation

Prospect Evaluation sources for Brendan Donovan of the Seattle Mariners

Brendan Donovan of the Cardinals continues his impressive rookie campaign, batting .310 with an .855 OPS through 41 games while playing six different positions. In a recent game against Pittsburgh, the 25-year-old went 3-for-4 with two doubles, two RBIs, and a run scored, sparking a Cardinals comeback from a five-run deficit to win 7-5. His clutch performance, including a two-run double in the sixth inning, has established him as a dark horse contender in the NL Rookie of the Year race.

Ezequiel Duran of the Rangers has made an immediate impact since his recent call-up, posting a .333 average (12-for-36) early in his MLB career. The 23-year-old third baseman delivered a game-tying RBI single in the eighth inning during a 5-3 Rangers victory over Houston, and has recorded multiple hits in five of his first nine career games.

Other prospects showing momentum include Alek Thomas of Arizona, who is rebounding from an adjustment period with a six-game hit streak and a .474 average (9-for-19) over his last six games, while maintaining more walks (5) than strikeouts (4). Michael Harris of Atlanta launched his first career home run, a solo shot against the Nationals in an eventual 9-5 Braves win.

Brendan Donovan, a 25-year-old utility player acquired by the Cardinals on their 40-man roster in November, impressed during spring training and positioned himself as the likely first call-up if the team needs an infielder or left-handed bench bat. The 6-foot-1, 195-pound former South Alabama seventh-rounder (2018) led the Cardinals with 32 spring at-bats while displaying defensive versatility across multiple infield positions. Manager Oliver Marmol noted that the coaching staff was specifically told before camp that they would appreciate Donovan's abilities. Donovan has developed positional flexibility after being moved from third base to second base to accommodate prospect Nolan Gorman, and subsequently shifted into a utility role when the Cardinals acquired Nolan Arenado. Working with infield coach Jose Oquendo, Donovan adopted a strategic approach to maintaining proficiency at multiple positions: taking fly balls in the outfield during batting practice, working grounders at his game-day position on days he plays, and practicing all positions on off days. Coming off a .304/.399/.455 season across three minor league levels in 2021 and an .885 OPS in 33 games at Triple-A in 2022, Donovan combines his defensive versatility with a contact-first batting approach valued by the organization for bench usage.

Brendan Michael Donovan is a left-handed hitter from South Alabama drafted by the St. Louis Cardinals in the 7th round (213th overall) in 2018. Standing 6'1" and weighing 195 pounds, Donovan was signed for $200,300. He made his MLB debut on April 25, 2022, and was ranked as the Cardinals' #13 prospect in 2022.

Donovan demonstrates strong offensive production with a .304 batting average, .437 on-base percentage, and .518 slugging percentage across 56 at-bats, with 3 home runs. His scouting profile emphasizes his production of hard contact and disciplined approach at the plate, with an ability to work walks. His swing is oriented toward line drives rather than power hitting, with power manifesting primarily as doubles.

Defensively, Donovan has played multiple infield positions throughout his career, providing solid defense at third base. His versatility positions him to stick in professional baseball at either second or third base. The prospect has been a consistent contributor to the South Alabama lineup and represents a balanced offensive and defensive prospect profile.

Brendan Donovan is a 23-year-old infielder acquired by the St. Louis Cardinals in the 2018 draft (7th round, 213th overall). Standing 6'1" and weighing 195 lbs, he bats left-handed and throws right. In his first full season, Donovan demonstrated a highly disciplined hitting approach characterized by minimal wasted movement, a quick and short swing, and excellent bat control, resulting in a 13% walk rate. His scouting report grades his hit tool at 50, noting his approach translates from college success at South Alabama where he had more walks than strikeouts. However, his power grades at 40, with scouts suggesting he could develop more power only at the cost of contact ability. The primary constraint on his prospect ranking is his fielding profile (grade 40), which limits him defensively. While he lacks the foot speed, range, and arm strength for shortstop, he projects best at second base or third base. Scouts characterize him as a "position-less" prospect with average defensive capability, fitting a profile the Cardinals have historically developed successfully. His 2021 rankings place him at #50 overall in the system, down slightly from #39 in 2020.

Source: thecardinalnation.com analyst May 11, 2026