Jonathan Mayo is an MLB.com Draft and prospect expert. He has been a reporter for MLB.com since 1999.
|Two young relievers are giving the Twins hope for a loaded bullpen in the future. J.T. Chargois, a second-round Draft pick in 2012, and Jake Reed, a fifth-round pick in 2014, have been showing off their power and command at Twins instructional league.
More» Jake Reed, College Pitcher|
|It is just one week before the start of another exciting Arizona Fall League season. The question at hand: Which hitting and pitching prospect are we most looking forward to seeing play in the AFL this year?
More» Tim Anderson, SS, White Sox|
|Here's a look at how the St. Louis Cardinals used the Draft, trades, free agency and international signings to build its postseason team.
More»MLB.com looks at the makeup of the 2014 Cardinals|
|Here's a look at how the Washington Nationals used the Draft, trades, free agency and international signings to build its postseason team.
More»MLB.com looks at the makeup of the 2014 Nationals|
|Last week, MLBPipeline.com handed out year-end awards for top hitting and pitching prospects. As much as Kris Bryant and Tyler Glasnow were deserving recipients, it was clear there were many other fantastic performances in 2014 that deserved some attention. With that in mind, MLBPipeline.com announced its 2014 All-Prospect Team on Friday.
More»Callis discusses the top prospects this season|
|Archie Bradley is ready to move past injury and struggles, and he is the pitching prospect with the most to prove, writes MLB.com Jonathan Mayo.
More»Mayo, Callis on prospect with most to prove in 2015|
|Jonathan Mayo answers fans questions about the Red Sox's Minor League rotation, the Arizona Fall League and more in this week's Pipeline Inbox.
More»Owens could boost Boston's rotation as early as 2015|
|One led all of the Minors in home runs and slugging percentage. The other topped all pitching prospects in batting average against while finishing third in ERA. It's for those reasons that Kris Bryant of the Cubs and Tyler Glasnow of the Pirates have been chosen as MLBPipeline.com's 2014 Hitting Prospect and Pitching Prospect of the Year.
More»Mayo on MLBPipeline.com's Prospects of the Year|
|Which prospect/rookie will have the largest impact in September and October? MLB.com's Jonathan Mayo argues that second baseman Kolten Wong is ready to play a vital role for St. Louis this fall.
More»Mayo, Callis on rookies impacting playoff races|
|Jonathan Mayo answers questions about Kris Bryant, the Arizona Fall League, the 2015 Draft and more in this week's Pipeline Inbox.
More»Cubs' Bryant on being named No. 4 prospect|
|Both Jim Callis and I agree that the Dodgers' Julio Urias is the best left-handed pitching prospect</b></a></span> in the game. Who comes next on that list is up for debate. While Jim is going with recent draftee Carlos Rodon of the White Sox, I'm sticking with Marlins southpaw Andrew Heaney.
More»Mayo, Callis look at left-handed pitching prospects|
|Cubs' slugger Kyle Schwarber dominated in August, hitting eight homers and 17 RBIs, which was enough to earn him the title of hitting Prospect of the Month. Red Sox's pitcher Brian Johnson allowed just two runs in four starts to earn him the pitching Prospect of the Month honors.
More» Kyle Schwarber, C, OF, Cubs|
|Monday is September 1, the day teams can expand their big league rosters to as many as 40 players. That doesn't mean every prospect will get the call. As teams make decisions about who to bring up to the parent club, a few variables will be taken into account.
More»Mayo discusses potential Sept. callups|
|Third-base prospect Kris Bryant's performance in Triple-A, where he has hit for both average and power, is worthy of a September callup to the Cubs, writes MLB.com's Jonathan Mayo.
More»Mayo, Callis discuss possible September callups|
|The Arizona Fall League announced its preliminary rosters for the 2014 season on Tuesday, and, for the second year in a row, the game's top prospect, Byron Buxton, is among myriad up-and-coming stars heading to the desert for some extra seasoning.
More»Jonathan Mayo discusses Arizona Fall League rosters|
|Did the Giants cash in on their prospects too early in an effort to add to their current roster? What's in store for Braves Kyle Kubitza? MLB.com's Jonathan Mayo responds to fans' questions about baseball's top prospects in the Pipeline Inbox.
More» Tyler Beede, RHP, Giants|
|Some of the top prospects in the game have needed Tommy John surgery over the past year. A total of five pitchers on the Top 100 prospects list have had the surgery and are at various stages of recovery.
More»Mayo on prospects who have had Tommy John surgery|
|Pirates prospect Josh Bell is legitimate and it's only a matter of time until he's hitting in the middle of a big league lineup manning a corner outfield spot.
More»Mayo, Callis on the best corner outfield prospect|
|Oakland outfielder Jaycob Brugman won Pipeline Prospect of the Week for the second week in a row, this time hitting eight RBIs in six games. Marlins lefty Andrew Heaney won the pitching honors after allowing just one earned run over two starts.
More» Jaycob Brugman, OF, Athletics|
|Mariners prospect Taijuan Walker has already shown an ability to dominate hitters at every level. His most recent start, on Sunday, could be a sign that he's ready to finish the season strong: seven innings pitched, two hits, one earned run, one walk and 13 strikeouts.
More»Mayo, Callis discuss best pitching prospect in Minors|