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20 Possible Callups In The Second Half
Plus: Sebastian Walcott has returned to game action.
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Sebastian Walcott, SS, Rangers: Walcott has missed the entire season after having surgery in February on his right elbow to alleviate an issue that cropped up last autumn and limited him to just one game in the Arizona Fall League. Now, he's taken the next step on the road to recovery. Walcott returned to the field Tuesday in his first rehab game, hitting leadoff in the Arizona Complex League in the Rangers' game against the Giants. He was pitted against another rehabber, Giants righty Argenis Cayama, who had been shelved since late May with lower back spasms. Walcott ranks No. 21 on Baseball America's Top 100.
Cristian Arguelles, OF, Rockies: Arguelles is one of the best prospects in the Arizona Complex League. After an excellent sophomore turn in the Dominican Summer League in 2025, the outfielder has taken his game to the next level in the desert. On Tuesday, he stayed piping hot in a Rockies rout of the Royals. He went 3-for-6 with a double, a triple, two runs scored and four RBIs, falling a longball shy of the cycle. His .395 average leads the league, as do his 65 RBIs, 79 hits, nine triples, 29 extra-base hits, 133 total bases and 56 runs.
Wilberson De Peña, OF, Yankees: De Peña is the fastest rising prospect in the Yankees system, and stands as one of the best overall talents in the Florida Complex League. He continued his tear through the league on Tuesday when he fell a triple shy the cycle as part of a 3-for-4 day that also included a walk and three RBIs. The home run was his 16th of the year, the most in the league since 2023, when Phillies farmhand Dakota Kotowski crushed 15 longballs. De Peña leads the league in batting average (.345), RBIs (61), slugging percentage (.684), hits (71), doubles (18) and total bases (141).
Editor’s Picks
Baseball America Helium Pick Of The Day
Each day, we’ll pick a prospect that has our attention.
Carlos Doñe, OF, Rangers: The Rangers signed Doñe this past January for a bonus of $197,500. On Tuesday, he established a new career highlight. The switch-hitting outfielder racked up four hits, five RBIs and 10 total bases. Oh, and he hit for the cycle. The double was his fifth of the year, his triple was his first and the home run was his fourth of the season. It was also the first four-hit game of the 17-year-old's young career.
Quick Hits
Prospect news and notes from around baseball…
Guardians righthander Alejandro Rivera fired five scoreless innings with eight strikeouts in the ACL on Tuesday. The 19-year-old now has a 2.72 ERA with 62 strikeouts over 43 innings. The Venezuelan righty has popped up several times this summer in RoboScout’s rankings and is currently the model’s fifth-best pitcher at the level.
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