A strange rumor has pushed the Boston Red Sox’s Marcelo Mayer trade back into the spotlight, and this one has nothing to do with the usual baseball explanations.
Mayer, the former top prospect, was dealt to the San Francisco Giants just before the MLB trade deadline. Boston got left-handed reliever Erik Miller and minor league outfielder Carlos Gutierrez back in the move. The 2021 No. 4 overall draft pick is said to be happy about a fresh start on the West Coast after a development path that moved quickly and was interrupted by multiple injuries.
But the trade has now taken on a different life online. A Reddit theory making the rounds claims there was personal friction inside the Red Sox orbit that helped drive the split. The unverified post ties Roman Anthony to an alleged falling out with Mayer, suggesting the two minor-league standouts were caught in a much messier situation than anyone knew.
The rumor centers on Anthony’s sister, Lia, who has drawn attention since 2025. After attending his debut game, she reportedly picked up thousands of followers. The viral post alleges that Mayer had been secretly hooking up or sleeping with her behind Roman’s back, and that when Roman found out, the relationship between the two prospects fell apart.
According to the gossip, the tension became so severe that the front office had to step in, and that the Red Sox eventually moved Mayer to the Giants to keep the situation from spilling further.
On the field, Mayer had played 70 games in the 2026 MLB season before going on the 10-day injured list with a forearm injury. He was batting .220 with 3 home runs and 22 RBIs.
Anthony had appeared in 30 games before landing on the 60-day injured list. He was batting .229 with 1 home run and 5 RBIs.
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