Adley Rutschman on August 11 made his Boston Red Sox debut and performed well with a hit, two walks and a strikeout in the loss. The The same night, following his debut, the Red Sox completed the Rutschman trade with the Baltimore Orioles.
On August 3, trade deadline day, the Red Sox agreed to send Carlos Narváez, top prospects Anthony Eyanson (No. 2), Kyson Witherspoon (No. 4), Enddy Azocar (No. 5) and a Player To Be Named Later (PTBNL) to their division rival. The PTBNL is outfield prospect Harold Rivas (No. 13), according to Andrew Parker of SoxProspects.
Rivas is already a familiar name among that group of players. When the Rutschman trade news first dropped on deadline day, sources reported that Rivas was included in the deal. It turns out he is, but in a different way.
The Red Sox signed Rivas as an international free agent in 2025 out of Barcelona, Venezuela. The18-year-old is only in rookie ball at the time of the Rutschman trade — in 2025, he made his professional debut in the Dominican Summer League (DSL) and moved onto the Florida Complex League (FCL) this season.
Red Sox include Harold Rivas as Player To Be Named Later in Adley Rutschman trade
Rivas is batting .241/.343/.429 with six doubles, four triples and six home runs over 46 games. He's struck out 52 times, walked 24 walks and stolen 23 bases. According to SoxProspects, Rivas has some work to do developing his approach at the plate, but he already possesses above average bat speed and chase rate. He's an "extremely advanced" defender in center field and elite speed.
Rivas is still a long way from the big leagues — MLB Pipeline estimates he'll debut in 2030. Prospects that young are a true wild card, but he's another piece in an already hefty return for Rutschman.
Rutschman is only under contract until after the 2027 season, which may not occur as planned due to the upcoming collective bargaining agreement negotiation between the league owners and the Players' Association. The heavy price Boston paid for Rutschman's services makes a contract extension imperative to get the most out of the trade. Rutschman won't be an easy player to extend, though, given his offensive potential, elite defense and his status as a three-time All-Star.
The Red Sox can afford to part with Rivas as well as the three other prospects they sent to the O's — their farm system is deep, the current front office has a keen eye for pitching talent and their major league outfield is packed for years to come. It will be interesting to see if Rivas, Eyanson, Witherspoon and Azocar thrive in the Orioles organization after they've quickly brought so many top prospects to the big leagues in recent years.
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