After Minor League Baseball clubs were formally invited to join MLB's new Professional Development League in December, Major League Baseball announced in February that all 120 clubs that were extended invitations to become PDL license holders have officially agreed to accept.

The new model of Minor League Baseball, detailed here, features several notable changes, including salary increases, restructured leagues, upgraded facilities and reduced in-season travel.

With the season starting this week, here is a team-by-team list of the 2021 Minor League affiliations:

AMERICAN LEAGUE EAST

Blue Jays
AAA: Buffalo Bisons
AA: New Hampshire Fisher Cats
A+: Vancouver Canadians
A: Dunedin Blue Jays
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Orioles
AAA: Norfolk Tides
AA: Bowie Baysox
A+: Aberdeen Ironbirds
A: Delmarva Shorebirds
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Rays
AAA: Durham Bulls
AA: Montgomery Biscuits
A+: Bowling Green Hot Rods
A: Charleston RiverDogs
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Red Sox
AAA: Worcester Red Sox
AA: Portland Sea Dogs
A+: Greenville Drive
A: Salem Red Sox
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Yankees
AAA: Scranton/Wilkes-Barre RailRiders
AA: Somerset Patriots
A+: Hudson Valley Renegades
A: Tampa Tarpons

AMERICAN LEAGUE CENTRAL

Indians
AAA: Columbus Clippers
AA: Akron RubberDucks
A+: Lake County Captains
A: Lynchburg Hillcats
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Royals
AAA: Omaha Storm Chasers
AA: Northwest Arkansas Naturals
A+: Quad Cities River Bandits
A: Columbia Fireflies
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Tigers
AAA: Toledo Mud Hens
AA: Erie SeaWolves
A+: West Michigan Whitecaps
A: Lakeland Flying Tigers
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Twins
AAA: St. Paul Saints
AA: Wichita Wind Surge
A+: Cedar Rapids Kernels
A: Fort Myers Mighty Mussels
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White Sox
AAA: Charlotte Knights
AA: Birmingham Barons
A+: Winston-Salem Dash
A: Kannapolis Cannon Ballers
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AMERICAN LEAGUE WEST

A's
AAA: Las Vegas Aviators
AA: Midland RockHounds
A+: Lansing Lugnuts
A: Stockton Ports
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Angels
AAA: Salt Lake Bees
AA: Rocket City Trash Pandas
A+: Tri-City Dust Devils
A: Inland Empire 66ers
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Astros
AAA: Sugar Land Skeeters
AA: Corpus Christi Hooks
A+: Asheville Tourists
A: Fayetteville Woodpeckers
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Mariners
AAA: Tacoma Rainiers
AA: Arkansas Travelers
A+: Everett AquaSox
A: Modesto Nuts
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Rangers
AAA: Round Rock Express
AA: Frisco RoughRiders
A+: Hickory Crawdads
A: Down East Wood Ducks
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NATIONAL LEAGUE EAST

Braves
AAA: Gwinnett Stripers
AA: Mississippi Braves
A+: Rome Braves
A: Augusta GreenJackets
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Marlins
AAA: Jacksonville Jumbo Shrimp
AA: Pensacola Blue Wahoos
A+: Beloit Snappers
A: Jupiter Hammerheads
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Mets
AAA: Syracuse Mets
AA: Binghamton Rumble Ponies
A+: Brooklyn Cyclones
A: St. Lucie Mets
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Nationals
AAA: Rochester Red Wings
AA: Harrisburg Senators
A+: Wilmington Blue Rocks
A: Fredericksburg Nationals
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Phillies
AAA: Lehigh Valley IronPigs
AA: Reading Fightin Phils
A+: Jersey Shore BlueClaws
A: Clearwater Threshers
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NATIONAL LEAGUE CENTRAL

Brewers
AAA: Nashville Sounds
AA: Biloxi Shuckers
A+: Wisconsin Timber Rattlers
A: Carolina Mudcats
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Cardinals
AAA: Memphis Redbirds
AA: Springfield Cardinals
A+: Peoria Chiefs
A: Palm Beach Cardinals
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Cubs
AAA: Iowa Cubs
AA: Tennessee Smokies
A+: South Bend Cubs
A: Myrtle Beach Pelicans
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Pirates
AAA: Indianapolis Indians
AA: Altoona Curve
A+: Greensboro Grasshoppers
A: Bradenton Marauders
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Reds
AAA: Louisville Bats
AA: Chattanooga Lookouts
A+: Dayton Dragons
A: Daytona Tortugas
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NATIONAL LEAGUE WEST

D-backs
AAA: Reno Aces
AA: Amarillo Sod Poodles
A+: Hillsboro Hops
A: Visalia Rawhide
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Dodgers
AAA: Oklahoma City Dodgers
AA: Tulsa Drillers
A+: Great Lakes Loons
A: Rancho Cucamonga Quakes
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Giants
AAA: Sacramento River Cats
AA: Richmond Flying Squirrels
A+: Eugene Emeralds
A: San Jose Giants 
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Padres
AAA: El Paso Chihuahuas
AA: San Antonio Missions
A+: Fort Wayne TinCaps
A: Lake Elsinore Storm

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Rockies
AAA: Albuquerque
AA: Hartford
A+: Spokane
A: Fresno