MLB’s first-of-its-kind authentication program is the most comprehensive collection system of any sports league, documenting hundreds of thousands of pieces of memorabilia every season.

If there's one thing Sean Manaea loves more than winning, it's ... YouTube. The A's lefty was mic'd up from the dugout for another episode of Play Loud presented by Bank of America to discuss the best thing he's learned from YouTube and more.

Do you think Mariano Rivera will teach Jimmy Fallon how to throw a cutter? The unanimous Hall of Famer accompanied “The Tonight Show” host to the Yankee Stadium mound.

Back for its 29th season, the Arizona Fall League will feature a 90-game regular season and an AFL Championship Game on Saturday, Nov. 20.

J.T. Realmuto sends the Phillies home in the 10th, Shohei Ohtani hits his 45th home run: Quick Pitch has all the action from September 21

The AL MVP race might not be as clear as we thought, and the NL side has a new leader.

Jonathan Mayo and Jim Callis held their own two-man, 20-pick experts draft, selecting the best college and high school prospects in the class.

In this edition of Real Fast, Ohtani hits his 45th home run, the Cardinals extend their winning streak to 10 games and Realmuto walks it off

The latest episode of the YouTube series focuses on how two-time gold medalist Jim Thorpe connects to Jackie Robinson.

Last week saw Tyler O'Neill lead the Cardinals through an unbeaten stretch and Cleveland's José Ramírez hit .500 over six games on their way to being named the NL and AL Players of the Week presented by Chevrolet, respectively.

Mets stars Francisco Lindor and Javier Báez take us on the field for a special "Play Loud" in honor of Roberto Clemente Day, including a funny exchange with fellow Puerto Rican native Yadier Molina.

J.T. Realmuto makes a difficult grab against the net behind home plate for the second out of the top of the 3rd inning

On MLB Tonight, Greg Amsinger, Dan Plesac and Carlos Peña discuss their pick for the top baseball card of all time on "Top of the Pack"

How do pitchers decide which jersey to wear? For Twins starters, there are all kinds of reasons.

Jon Lester holds the Brewers to three hits over six innings and strikes out a pair to pick up his 200th career victory