Pipeline preview: Walker riding power surge at plate

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

Hitter to watch: Adam Walker (Twins’ No. 16), Rochester vs. Buffalo (7:05 p.m. ET on MiLB.TV)

Majestic home runs have always been a part of Walker’s game, and the 24-year-old outfielder is on another power surge. Walker hit his 25th homer of the season Wednesday and has gone deep twice in the past three games and three times in his past six. In 113 total games this season, Walker is slashing .241/.308/.484.

Pitcher to watch: Michael Kopech (Red Sox No. 5), Salem vs. Carolina (7:05 p.m. ET)

Kopech’s season didn’t begin until June 17 because of a broken hand suffered during Spring Training, but the No. 77 overall prospect has been dominant since he got on the mound. Kopech is 2-1 with a 1.29 ERA through nine starts across two levels this season and has struck out 64 batters in 42 2/3 innings. The right-hander is also coming off an outing in which he fanned 11, a career high.

Duel of the Day: Rob Zastryzny (Cubs’ No. 20) vs. Clayton Blackburn (Giants’ No. 14), Iowa vs. Sacramento (10:05 p.m. on MiLB.TV)

After going 0-2 in July, Zastryzny is 3-0 with a 2.81 through three August starts. The 24-year-old lefty was roughed up a bit in his last outing but has held opponents scoreless in two of his three starts this month. Zastryzny struck out nine in his last start and has fanned 22 over his past 16 innings.

Blackburn threw a season-high 106 pitches (71 strikes) in his last start, so it’s worth seeing if there are any lingering effects. …

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