The Astros made history on Monday when they selected Carlos Correa, a shortstop out of the Puerto Rico Baseball Academy and High School, with the first overall selection. The 17-year-old, who's 6-foot-4 and 190-pounds, is the highest-drafted player in the history of Puerto Rican baseball.
The Twins selected five-tool outfielder Byron Buxton from Appling County High School (Ga.) with the second overall pick, and the Mariners picked University of Florida catcher Mike Zunino with the third pick. Kevin Gausman, a right-handed pitcher from LSU, was taken by the Orioles with the fourth overall pick, and University of San Francisco right-hander Kyle Zimmer was picked by the Royals to round out the top five selections.
Overall, there were 17 high school players and 14 college players selected in the first round, a group that included 13 pitchers and 18 position players. Including the first compensation round, a total of 60 players were selected on Monday.
Among the players to watch are Ty Buttrey, a right-handed pitcher from Providence Senior High School (N.C.) and Tanner Rahier, a shortstop from Palm Desert High School (Calif.), ranked 35th and 37th, respectively.
University of Georgia left-handed pitcher Alex Wood (No. 42), Arkansas right-hander Nolan Sanburn (No. 44), left-handed pitcher Hunter Virant from California's Camarillo High School (No. 47), Carson Kelly, a third baseman from Oregon's Westview High School (No. 48) and first baseman/outfielder Adam Brett Walker from Jacksonville University (No. 50) are all still available.
Here's a look at some of the Top 100 Prospects List not yet selected.
35. Ty Buttrey, RHP, Providence Sr HS (N.C.): When a pitcher kicks off a Draft season with a noticeable jump in velocity, it's going to attract attention. Buttrey did just that, causing an influx of scouts to the Charlotte area. Considering he's still a bit raw, his size, arm strength and potential should have many teams interested on Tuesday.
37. Tanner Rahier, SS, Palm Desert HS (Calif.): Rahier isn't taking the most typical path as a Draft prospect. He doesn't play for his high school team. Instead, the infielder chose to play for his spring travel team, playing in wood bat games instead of for his Palm Desert High School team, and scouts have been sure to check him out. The San Diego commit likely won't stay at shortstop, though all of his skills, from the power bat to his defensive tools, should profile just fine at third base.
42. Alex Wood, LHP, Georgia: Combine left-handedness, velocity and pitching in a tough college conference, and the result is going to be a Draft prospect worth watching. Wood's overall command needs to improve as he moves on, but most of it is caused by some mechanical issues with his delivery. If corrected, he has the stuff to be a very intriguing left-handed starter.
44. Nolan Sanburn, RHP, Arkansas: Sanburn has seen most of his action on the Razorbacks out of the bullpen, and while he has started a few games, most see his future as a reliever. He does go right after hitters with a closer-like mentality, a role he could potentially fill at the next level.
Top talent on the table
Below is a list of MLB.com's Top 100 Draft prospects who were still available entering Day 2 of the Draft.
Player, Pos., School
Tanner Rahler, SS, Palm Desert HS (Calif.)
Alex Wood, LHP, Georgia
Nolan Sanburn, RHP, Arkansas
Hunter Virant, LHP, Camarillo HS (Calif.)
Carson Kelly, 3B, Westview HS (Ore.)
Adam Brett Walker, 1B/OF, Jacksonville
Mitchell Brown, RHP, Century HS (Minn.)
Chris Beck, RHP, Georgia Southern
Peter O'Brien, C, Miami
Jake Barrett, RHP, Arizona St.
Anthony Alford, OF, Petal HS (Miss.)
Duane Underwood, RHP, Pope HS (Ga.)
Matt Koch, RHP, Louisville
Nolan Fontana, SS, Florida
Jameis Winston, RHP, Hueytown HS (Ala.)
Tom Murphy, C, Buffalo
Wyatt Mathisen, C, Calallen HS (Tex.)
Branden Kline, RHP, Virginia
J.T. Chargois, RHP, Rice
Teddy Stankiewicz, RHP, Ft. Worth Christian School (Texas)
Freddy Avis, RHP, Menlo School (Calif.)
Stephen Johnson, RHP, St. Edwards (Texas)
R.J. Alvarez, RHP, Florida Atlantic
C.J. Hinojosa, SS, Klein Collins HS (Texas)
Alec Rash, RHP, Adel DeSoto Minburn HS (Iowa)
Dylan Baker, RHP, Western Nevada CC
Chase DeJong, RHP, Wilson HS (Calif.)
Rio Ruiz, 3B, Bishop Amat HS (Calif.)
Fernando Perez, 3B, Central Arizona JC
Brady Rodgers, RHP, Arizona St.
Kevin Brady, RHP, Clemson
Trey Williams, 3B, Valencia HS (Calif.)
Skye Bolt, OF, Holy Innocents Episcopal HS (Ga.)
Brandon Thomas, OF, Georgia Tech
Preston Tucker, OF, Florida
Mitchell Traver, RHP, Houston Christian HS (Texas)
Kenny Diekroeger, SS, Stanford
Mason Melotakis, LHP, Northwestern St.
Martin Agosta, RHP, St. Mary's
Tony Renda, 2B, California
Austin Maddox, RHP/1B, Florida
Nick Williams, OF, Galveston Ball HS (Texas)
Buck Farmer, RHP, Georgia Tech
Kyle Hansen, RHP, St. John's
Kolby Copeland, OF, Parkway HS (La.)
Brett Mooneyham, LHP, Stanford
47. Hunter Virant, LHP, Camarillo HS (Calif.): The UCLA commit throws his fastball for strikes and competes well. And he does it all with a very smooth delivery. Those raw ingredients, along with his ideal pitcher's frame and his handling of the big-spotlight events, had many scouts watching his progress this spring.
48. Carson Kelly, 3B, Westview HS (Ore.): The top 2012 prospect from the Pacific Northwest, scouts took a look at Kelly both as a pitcher and as a third baseman. While initially it seemed like his arm might be of more interest, it became apparent as the Draft approached that most liked his potential as a position player more.
50. Adam Brett Walker, 1B/OF, Jacksonville: The son of a former NFL running back, Walker looks the part of a future slugger. The question is if he has the baseball skills to get there. A big, physical specimen, Walker has played first base and the outfield. There is some concern that he's a Ferrari with a VW engine.
51. Mitchell Brown, RHP, Century HS (Minn.): It's not uncommon for players who play in colder climates to be late risers, as scouts don't get to see them until the weather changes. That definitely has been the case for Brown this spring. There was little doubt he was the best player in the state of Minnesota as the Draft arrived.
52. Chris Beck, RHP, Georgia Southern: The Georgia native has the chance to have three pitches that will be Major League average or better. He can run his fastball up to 94 mph, sitting comfortably at 92-93 mph, and he maintains his velocity deep into starts. If he would pitch off of his fastball more, he could be even better -- a frontline starter with three weapons to choose from.
61. Nolan Fontana, SS, Florida: Take each of Fontana's tools individually and none of them may overwhelm you. Add them up and you'll like what you see a lot more. Fontana could be a very good second baseman, a decent shortstop or the kind of super utility man championship-caliber teams tend to have. Whatever the case, his abilities and instincts should allow him to help a big league club out quickly.
62. Jameis Winston, RHP, Hueytown HS (Ala.): A two-sport standout in high school, the biggest immediate question facing teams interested in his tools is whether or not he can be lured from being quarterback at Florida State to play baseball full-time as a pro. Winston just needs to play to improve his instincts and baseball IQ. Whether he chooses that path after the Draft should be an interesting storyline to watch.
73. R.J. Alvarez, RHP, Florida Atlantic: With a bulldog mentality and a body type to match, Alvarez plays the part of a short reliever very well. Even if Alvarez isn't racking up saves, he could have value as a setup man, with velocity and mound presence that are too much for teams to ignore on Tuesday.
75. C.J. Hinojosa, SS, Klein Collins HS (Texas): Hinojosa was initially supposed to head to the University of Texas in January. When that didn't pan out, he went back to high school, but dislocated his shoulder, putting a bit of a cloud over his Draft status. Hinojosa's injury, as well as his continued plan to attend Texas, makes figuring out his Draft stock more difficult than usual.
98. Kolby Copeland, OF, Parkway HS (La.): One of the areas of depth in this Draft class appears to be in high school position players. Case in point is Copeland, a Louisiana prepster who was getting more buzz as the Draft approached. A quarterback who earned honorable mention all-state, Copeland was drawing some decision-makers to see him play as the spring wore on.
99. Brett Mooneyham, LHP, Stanford: Most of the attention given to the Stanford pitching staff goes to Mark Appel, who was selected by the Pirates in the first round, but that doesn't mean that this Saturday starter is being ignored. Issues with command and control have plagued Mooneyham throughout his career, but his stuff is still plenty good enough to compete at the next level.
Jesse Sanchez is a national reporter for MLB.com. Follow him on Twitter @JesseSanchezMLB. This story was not subject to the approval of Major League Baseball or its clubs.