John Klein played 1 season (2026) for MIN and TOR.
Sport-specific career totals from the active profile tables, with VAL shown whenever the sport has a value file.
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MLB Advanced — ERA+ & OPS+ LeadersMLB Age Milestones — Youngest to 1,000 Hits, 100 HR, 100 Wins and 1,000 KMLB Breakout Seasons — Biggest Career-High LeapsMLB Career Arc TypesMLB Career Dominance — top-25 in multiple all-time categoriesMLB Clutch Delta — Who Rises in OctoberMLB Compilers vs Comets — Career ShapeMLB Consistency Index — Mr. Reliable vs Boom-BustMLB Era-Adjusted Careers — Greatest Careers on One ScaleMLB Era-Adjusted Seasons — Greatest Seasons in Modern TermsMLB Franchise Mt. Rushmores — Four Faces of Every TeamMLB Greatest Single Seasons by VAL (Hitters and Pitchers)MLB Hall of Very Good — Great Careers on Cooperstown's DoorstepMLB JourneymenMLB League Leader Marks — Most League-Leading SeasonsMLB Loyalty
Bio, rosters, and year-by-year/career stat splits come directly from MLB's own official public StatsAPI.
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