Jonathan Mayo is an MLB.com Draft and prospect expert. He has been a reporter for MLB.com since 1999.
|It's probably not fair to extrapolate numbers after just three starts, but if Royals right-hander Yordano Ventura keeps his ERA under 3.00 and his K/9 rate over 10, he could very easily give Jose Abreu and Masahiro Tanaka a run for their money in the voting for this year's American League Rookie of the Year Award.
More»Mayo, Callis debate best rookie so far this season|
|The Marlins' farm system's left-leaning tendencies were on full display on the mound Sunday, as top prospect Andrew Heaney went seven innings against Pensacola (Reds) in the Double-A Southern League and allowed just one run on three hits over seven innings, walking none and striking out nine.
More» Andrew Heaney, LHP, Marlins|
|To say D-backs prospect Archie Bradley is ready for a big league shot is not exactly breaking new ground. He is, after all, MLB.com's top-rated pitching prospect, coming in at No. 5 in the Top 100 rankings. Though he's just 21, one gets the feeling that it's a question of when, not if, Bradley gets the call this season.
More»Mayo, Callis debate first callup among top prospects|
|Does George Springer have a viable shot at Rookie of the Year? Where will Vincent Velasquez end the season? Jonathan Mayo responds to these questions and more in the Pipeline Inbox.
More» Springer records his first Major League hit|
|Each week, the Pipeline staff will choose Prospects of the Week, one hitter and one pitcher, along with others who deserve "Honorable Mention" status.
More» Chad Pinder, SS, Athletics|
|Clemson right-hander Daniel Gossett missed his last start against North Carolina State because of shoulder soreness, but he will be back to face Virginia this weekend.
|Luis Ortiz of Sanger High School in Northern California has been recovering from a forearm strain, and he is slated to pitch before scouts on Tuesday.
More» Luis Ortiz, HS Pitcher|
|Some of the advanced bats that have emerged among this year's Draft class belong to Wichita State's Casey Gillaspie, Oregon State's Michael Conforto and San Francisco's Bradley Zimmer.
More» Michael Conforto, College Outfielder|
|The 2014 season is well underway, and the Pipeline Inbox is back. The months of guessing where players were going to go in 2014 are in the past, and so the stats of a new season are now filling up the pages on Prospect Watch. With games being played, questions about prospects and their progress are coming in.
More» Rafael Montero, RHP, Mets|
|Top prospect Taijuan Walker sent a clear message to the Seattle Mariners on Wednesday night: He wants back into the big league rotation.
More»Walker, Paxton hoping to build on 2013 experience|
|Of the prospects on MLB.com's Top 100 list, 11 were on Opening Day big league rosters, with 74 more on rosters of full-season Minor League teams that get started this week.
More»Baez, Bryant proud to be part of Cubs' system|
|Travis Jankowski's ability to produce while being assigned somewhat aggressively is a good sign of things to come.
More»Mayo, Callis debate 2014 Minors stolen base leader|
|There were some very good performances at the NHSI and there were some not-as-stellar showings, though it doesn't appear that anyone either greatly improved or severely damaged their stock. Still, some did fare better than others, and the list of top performers -- headlined by righty Touki Toussaint -- reflects that.
More» Touki Toussaint, HS Pitcher|
|Touki Toussaint was the main attraction on Day 1 of the 2014 National High School Invitational on Wednesday, and he didn't disappoint.
More» Touki Toussaint, HS Pitcher|
|Until recently, first baseman Isiah Gilliam at Parkview High School in Georgia was seen as an underclassman whom scouts noticed but didn't focus on. The news that Gilliam is now eligible for this year's Draft has the scouting industry scrambling to evaluate him.
|While two games were played in the main stadium Wednesday, a total of six were played on the back fields at the complex, with some solid Draft prospects on display.
More» Michael Gettys, HS Outfielder|
|When USA Baseball's 2014 National High School Invitational begins at the National Training Complex in Cary, N.C., on Wednesday and concludes with the championship game on Saturday, expect the stands to be filled with evaluators.
More» Jacob Gatewood, HS Shortstop|
|You are not going to win a strikeout crown, regardless of professional level, just by throwing hard. That's one of the big reasons why Pirates prospect Tyler Glasnow is the slam-dunk choice to lead the Minor Leagues in 2014.
More»Mayo, Callis debate the 2014 Minors strikeout leader|
|It's an unavoidable occurrence, both among potential draftees and across baseball: Best laid plans change because of injury. This early spring is no different, with several potential Draft prospects having already landed on the shelf.
More» Mac Marshall, HS Pitcher|
|It's a trip many a scouting director will make this spring, a journey down the West Coast to see some of the best high school talent this Draft class has to offer: Brady Aiken in Southern California, Jacob Gatewood in Fresno, then back down south for Alex Jackson.
More» Brady Aiken, HS Pitcher|