Gallo hits walk-off three-run jack for Double-A

Rangers' No. 4 prospect Joey Gallo's introduction to Double-A ended with a bang Monday. The reigning Minor League home run king hit a walk-off three-run homer and Frisco defeated Midland, 7-4.

Gallo was promoted from Class A Advanced Myrtle Beach over the weekend and was making his debut with Frisco on Monday. His first game in a RoughRiders uniforrm began inconspicuously and he was hitless going into the ninth inning. But with two out and two on, Gallo drove a 2-0 pitch out to left-center field and deep into the Texas night for his first Double-A home run and victory.

Gallo, ranked No. 78 on's Top 100 Prospects list, went 1-for-5 with four RBIs and three strikeouts Monday. His home run was his 22nd of the year, moving him back into a tie with Cubs' No. 2 prospect Kris Bryant atop the Minor League leaderboard. Bryant had taken the lead earlier in the night with a homer of his own for Double-A Tennessee.

Gallo hit .323/.463/.735 with 21 home runs in 57 games with Myrtle Beach. He led the Carolina League in home runs, on-base percentage, slugging percentage, runs (53), RBIs (50) and walks (51).

Right-hander Luke Jackson, the Rangers' No. 7 prospect, started the game for Frisco, though he was long gone by the time Gallo hit his home run. Jackson allowed four runs on three hits and two walks in 5 1/3 innings. He also struck out nine batters and now leads the Texas League with 74 strikeouts in 72 1/3 innings this season.

Grace Raynor is an associate reporter for Teddy Cahill is a reporter for Follow him on Twitter at @tedcahill. This story was not subject to the approval of Major League Baseball or its clubs.