The Boston Red Sox signed outfielder Roman Anthony to an eight-year contract extension Wednesday, locking up the former No. 1 prospect in baseball in the middle of his standout rookie season. The deal,

— 2034 club option would increase by $2 million for each MVP award 2025-33, $1 million for each second- or third-place finish, $750,000 for each fourth or fifth, $500,000 for each sixth through 10th, $200,000 for each All-Star election or selection from 2026-33 and $1 million if first or second in 2025 Rookie of the Year voting

Roman Anthony’s complicated, groundbreaking extension with the Red Sox is official — and its value will largely be determined by how he performs over the next decade.