Up next: 7:05 p.m., Tulsa vs. Springfield Cardinals at ONEOK Field

Radio: KTBZ am1430

Probable pitchers: Springfield, RHP Johan Oviedo (5-6, 5.60 ERA); Tulsa, RHP Markus Solbach (2-0, 0.59)

Season series: Drillers lead 16-8

Promotions: Mega Money — Fans can win up to $10,000 based on game events.

On deck: 7:05 p.m. Tuesday vs. Springfield ($2 Tuesday)

Driller bits

Series split: Freddy Fermin’s bases-loaded single in the ninth inning gave the Northwest Arkansas Naturals a 3-2 win over the Drillers on Sunday afternoon at Arvest Ballpark in Springdale, Arkansas.

His winning hit gave the Naturals (47-69 overall, 16-32 second half) their second walk-off win in the past three days and a split of their four-game series with the Drillers (64-54, 27-22).

Drillers reliever Jordan Sheffield (2-3) opened the ninth by walking two batters sandwiched around a hit-by-pitch to load the bases with no outs for Fermin, whose winning single was given up by Luis Vasquez.

Fermin went 3-for-4 with three RBIs. He only had one RBI in his previous 12 games. Tulsa led twice, but each time Fermin had a tying RBI, including his seventh-inning single that made it 2-2.

Roster move: Tulsa pitcher Justin De Fratus (6-8, 4.96) was promoted to Triple-A Oklahoma City on Sunday.

Hot hitter: Drillers infielder Errol Robinson is batting .450 during a six-game hitting streak.

Looking ahead: The Drillers host Springfield in the opener of a four-game series Monday. Tulsa, which has 21 regular-season games remaining, swept three home games over the Cardinals last week.

Attendance comparison (58 dates): 2019: 327,369; 2018: 305,795.