Alvarez cleared waivers Thursday and was sent outright to Triple-A Las Vegas.
The 30-year-old Alvarez posted a .967 OPS in Triple-A across 317 plate appearances in 2024 and reached the majors for the first time, going 9-for-37 with two RBI over 16 games. However, he no longer owns a spot on the Athletics' 40-man roster and will remain in Las Vegas as organizational depth.