Pipeline preview: Giolito set for Triple-A debut

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

Hitter to watch: Paul DeJong (Cardinals’ No. 17), Springfield vs. Arkansas (7:30 p.m. ET on MiLB.TV)

DeJong, 22, belted a solo home run in game one of Double-A Springfield’s doubleheader against Arkansas on Monday, giving him 17 home runs in his first full pro season. DeJong had some swing-and-miss issues as a result of jumping directly to Double-A from Class A Peoria, but his power has translated nicely, and he’s cleaned up his defense at the hot corner.

Pitcher to watch: Lucas Giolito (Nationals’ No. 1), Syracuse vs. Gwinnett (6:35 p.m. ET on MiLB.TV)

Giolito, MLBPipeline.com’s No. 1 overall prospect, is set to make his second start since returning from his first big league stint, where he allowed four earned runs on eight hits in 7 2/3 innings across two starts for the Nationals. It will also be Giolito’s first Triple-A start, as he was promoted directly from Double-A Harrisburg and then had a tune-up outing for Class A Hagerstown last week. Between the two Minor League levels, the 22-year-old right-hander has registered a 3.35 ERA with 76 strikeouts and 34 walks in 78 innings (15 starts).

Duel of the day: Ryan Castellani (Rockies’ No. 16) vs. Zack Erwin (A’s No. 21), Modesto at Stockton (10:10 p.m. ET)

Castellani, whom the Rockies selected in the …

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