Campbell started at second base and went 0-for-3 in Friday's spring game against Northeastern University.
Campbell said Monday that he's been working out at second base almost exclusively, Rob Bradford of WEEI.com reports.
Boston's acquisition of Alex Bregman could impact Campbell in 2025, Ian Browne of MLB.com reports.
Campbell will be part of the competition during spring training to win the starting second base job, Ian Browne of MLB.com reports.
Triple-A Worcester placed Campbell (lat) on the 7-day injured list Tuesday.
Campbell was removed from Triple-A Worcester's game Wednesday versus Syracuse after feeling a spasm in his left shoulder while running the bases, Tommy Cassell of the Worcester Telegram & Gazette reports.
Campbell was promoted to Triple-A Worcester on Sunday, Chris Cotillo of MassLive.com reports.
The Red Sox will promote Campbell from High-A Greenville to Double-A Portland on Monday, Alex Speier of The Boston Globe reports.
The Red Sox have selected Campbell with the 132nd overall pick in the 2023 First-Year Player Draft.