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Luis Perales, RHP, Red Sox: Perales held Altoona to just two hits and one unearned run in five innings while walking one and striking out seven in his Double-A debut. It was another impressive outing for the 21-year-old. He earned the promotion by striking out 46 in 26.1 innings with High-A Salem. Perales is now 2-2, 2.87 overall with a 53-to-11 strikeout-to-walk ratio in 31.1 innings.

Brandon Sproat, RHP, Mets: Sproat allowed just one hit and one walk in seven innings while striking out 10 in his best start of the season for Double-A Binghamton. Sproat earned a promotion to the Eastern League in mid-May. So far he’s been every bit as good after the promotion as he was before. Sproat is 1-0, 1.38 with a 0.77 WHIP and a .163 average against in Double-A after going 2-1, 1.07 with a 1.11 WHIP and .141 average against in High-A. Sproat’s 1.23 overall ERA is tied for third best in the minors (with Mariners prospect Logan Evans).

Hurston Waldrep, RHP, Braves: The Braves promoted Waldrep to Triple-A this week as the team deals with multiple pitching injuries. Waldrep was solid in his first Triple-A start. He struck out a career-high 11 (one more than the 10 he struck out for Rome in his fourth pro start last season). The one big mistake was he gave up a two-run home run to Heston Kjerstad in the first inning. Waldrep allowed five hits and three runs in six innings. He walked one.

Cole Carrigg, SS/CF, Rockies: We can no longer call Carrigg a shortstop/center fielder/catcher. He’s yet to catch a game this year with High-A Spokane, but he’s bounced back and forth between the two other positions. He’s struggled at times at the plate, but this past week has been excellent. Carrigg had a two and three-hit game earlier this week against Everett. On Saturday he was 4-for-5 with a triple and three steals. On Sunday, he was 3-for-4 with a walk. Carrigg is now hitting .272/.365/.462.

Trey Sweeney, SS, Dodgers: Sweeney has had a relatively middling season so far for Triple-A Oklahoma City. But after being acquired in the offseason from the Yankees, Sweeney has come alive during the series at Albuquerque. He homered three times on May 29, went 2-for-4 with a double and a triple on Saturday and now has homered twice again on Sunday. Sweeney has nine home runs this season, and seven have come in the past nine days. He’s hitting .252/.349/.450 overall.

We kept the Prospect Wire going all weekend. Check out new updates on Owen Caissie, Jordan Lawlar, Walker Jenkins & more. 

Maxwell, Waldrep Among Statcast Standouts To Know

Each Monday, we look at several players with impressive Statcast data from the previous week of action. Today, we’re analyzing a pitcher with potential top-tier closer potential, a position player remaking himself as a knuckleballer, a top prospect fighting his way back from injuries, plus the slow development of another top-five prospect. Baseball America subscribers can dive into the full breakdowns from Eli Ben-Porat below.

Want to get ahead? Each day we’ll surface one prospect from recent Baseball America coverage who could be on the rise.

Baseball America Helium Pick Of The Day

Alejandro Rosario, RHP, Rangers: The Rangers righty has been nearly untouchable all season long for Low-A Down East. Since debuting on April 19, the Miami alum has carved Carolina League hitters with ruthless efficiency.

His start on June 1 was his best yet. Facing Fredericksburg at home, the righthander spun six shutout innings and struck out 11 while allowing just a hit and walking nobody. He finished the night with just 66 pitches, including 47 strikes and 17 swings and misses.

The stuff Rosario used to rack up those stats was particularly filthy. His sinking fastball sat between 96-97 all night long, and he touched as high as 99. He backed the heater with a slicing slider in the mid 80s and a hard-darting splitter in the low 90s. Each of his three pitches garnered whiffs.

Despite Rosario going 13-13, 6.47 at Miami, the Rangers saw ways they believed they could amplify his arsenal and unleashed those traits once he turned pro. The Hurricanes encouraged Rosario to only use his fastball in the lower portion of the strike zone and had his splitter shelved due to lack of command of the pitch.

The Rangers have asked Rosario to elevate his fastball because of the way his delivery works and allowed him to once again use his splitter. The results have been spectacular.

After handcuffing Fredericksburg, Rosario’s ledger looks like this: 2-2, 1.44 with just 22 hits and six runs (five earned) allowed in 31.1 innings. He has struck out 49 hitters and walked just five.

Interestingly enough, his outing against Fredericksburg was his longest of the season in terms of innings and established a career high for strikeouts. It was also the fewest pitches he’d thrown in an outing since April 27, when he threw 57 over 3.2 innings against Fayetteville.

— Written by Baseball America’s Josh Norris