Guerrieri squares off against Mahle in Double-A duel

Here’s a look at top prospects to watch in Tuesday’s Minor League action:

Hitter to watch: Joey Gallo (Rangers’ No. 1), Round Rock vs. Omaha (8:05 p.m. ET on MiLB.TV)

Gallo slugged his 19th home run on Monday in Triple-A Round Rock’s extra-inning loss against Colorado Springs. The No. 7 overall prospect has gone deep four times in his past 10 games and has five homers in 20 games this month. Gallo enters the day with a .246/.381/.557 slash line through 70 games for the Express.

Pitcher to watch: Heath Fillmyer (A’s No. 18), Midland vs. Frisco (7:30 p.m. ET on MiLB.TV)

Fillmyer is set to make his second start for Midland after he tossed five innings of two-run ball in his Double-A debut on July 21. The 22-year-old right-hander, Oakland’s fifth-round pick in the 2014 Draft, was promoted to Midland after an excellent first half at Class A Advanced Stockton, where he posted a 3.60 ERA with 89 strikeouts in 95 innings (18 games/16 starts).

Duel of the day: Taylor Guerrieri (Rays’ No. 6) vs. Tyler Mahle (Reds’ No. 10), Montgomery vs. Pensacola (8:05 p.m. ET on MiLB.TV)

Guerrieri has been cruising of late for Double-A Montgomery, as he enters the day having completed at least seven innings in four of his past five starts. The 23-year-old right-hander has not suffered a loss in nearly two months, going 8-0 in his 10 starts since May 27. The 2011 …

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