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USA Today

The 2014 season has seen a number of notable prospects receive call-ups to the major leagues. Undoubtedly, there are more to comeand soon.

In fact, with less than a month to go until the trade deadline, there should be plenty of promotions of prime prospects, especially once all the wheeling and dealing starts opening up 25-man roster spots.

Highly regarded youngsters like George Springer, Gregory Polanco and Jonathan Singleton have been starting for their respective clubs for quite some time now.

And over the past week or so, Oscar Taveras, Mookie Betts and Domingo Santana, a trio of top outfielders with the St. Louis Cardinals, Boston Red Sox and Houston Astros, respectively, were called up. While Betts debuted on June 29 and Santana's first game was July 1, this is Taveras' second stint after he first got the call at the very end of May.

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The first day of the 2014-15 international signing period officially is in the books.

While most teams played by the rules and stayed within their allotted bonus pools, the New York Yankees and Boston Red Sox set a new precedent by opting to ignore spending limitations (at the cost of a future penalty) in order to sign many of the top-ranked prospects in this year’s class.

Based on the players they landed Wednesday, it’s hard to criticize either team for having the means to exploit a loophole in the current collective bargaining agreement. At the same time, there also were plenty of teams that landed promising young players without exceeding their bonus pools.

While the Yankees and Red Sox both enjoyed a rewarding start to the current international signing period, there were several teams that made lackluster signings Wednesday as others were kept off the board completely.

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Major League Baseball's international signing period for 2014-15 began this morning at 9 a.m. ET, and after a series of technical difficulties, Prospect Pipeline finally has you covered with up-to-the-minute information on the day's biggest signings and rumors.

With many signings having already rolled in today, here's what you need to know about the top prospects in this year's class and their potential suitors.

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July has begun, which means there's now less than a month until the non-waiver trade deadline. It also means there's bound to be all sorts of rumors and speculation in the coming weeks as teams become buyers and sellers on the trade market. And, of course, actual trades will be going down and shaking up pennant races and the playoff picture.

While the big leaguers involved in those deals will be the focus because of what they can do for their new clubs over the rest of the 2014 season, there's another side to many trades that deserves some attention too. That would be the prospects included to help land said big leaguers.

That's what this is all about—shedding some light on the youngsters whose names could be bandied about and who even might be swapped between now and July 31. What follows is a rundown of 30 prospects, one from each team, who fit that bill.

Not every team is going to be dealing a piece of its future, of course, but even rebuilding clubs—like the Chicago Cubs, Houston Astros, Arizona Diamondbacks, San Diego Padres and Tampa Bay Rays, among a few others—might consider trading a prospect who isn't considered a key part of their franchise in 2015 and beyond but who could be tacked on to polish off a deal.

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One name you are going to hear about a lot over the next 24 hours is Dermis Garcia.

Garcia, a 16-year-old shortstop from the Dominican Republic, is viewed as one of the top prospects eligible to sign on July 2—the first day of the 2014-2015 international signing period—and he is expected to receive one of the largest bonuses among players in this year’s class.

According to Kiley McDaniel of Scouting Baseball, the New York Yankees are widely believed to have a deal in place with Garcia for $3 million, as the organization is expected to blow past international spending restrictions and sign a slew of international prospects.

That said, Garcia isn’t considered to be the top prospect in this year’s class. In fact, where he ranks among this year’s J2 players depends on whom you ask, which in turn raises questions as to whether or not he’ll ever emerge as the prize of this year’s class.

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Late last week we learned through a report by Ben Badler of Baseball America (h/t MLB Trade Rumors' Steve Adams) that another high-profile Cuban hitter, outfielder Yasmani Tomas, had defected in order to pursue a career in Major League Baseball.

Jesse Sanchez of MLB.com noted that the 23-year-old currently is in the Dominican Republic, and Adams points out he "needs to establish residence in a foreign country and then be cleared by both Major League Baseball and the United States Office of Foreign Assets Control" before he can sign.

With that in place, Tomas will be free to sign with an interested team for any amount, as his age and experience—he played in parts of five seasons for the Industriales in Cuba’s Serie Nacional—"make him exempt from MLB’s international spending limitations."

There isn’t a definite timetable for the aforementioned process, as Adams notes, and Tomas may not end up signing with a team until late 2014 or even 2015.

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This season already has featured promotions for some of baseball’s top prospects, as we’ve seen George Springer, Gregory Polanco, Marcus Stroman and Andrew Heaney receive call-ups to the major leagues, while big names such as Kris Bryant, Mookie Betts and Joey Gallo have moved up to higher minor league levels.

However, while the aforementioned players already have received promotions, there are even more prospects putting up impressive numbers who are long overdue for the challenge of a new level.

Here are five scorching prospects who deserve midseason promotions.

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With small sample sizes representing a lesser concern now that Major League Baseball teams have played over 70 games in the 2014 season, we're starting to get an idea about this year's rookie class.

International sensations Masahiro Tanaka and Jose Abreu have emerged as elite players due to their tremendous starts to the season, while Yordano Ventura and Xander Bogaerts have each made it clear that the running for American League Rookie of the Year won't necessarily be a two-horse race.

And even though this year's class isn't nearly as deep in the National League, we have seen the rise of promising talents in Billy Hamilton and Chris Owings.

But between both leagues, which rookies have been the best at their respective positions?

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USA Today

The 2014 season has seen a number of notable prospects receive call-ups to the major leagues. Undoubtedly, there are more to comeand soon.

In fact, with about a month until the trade deadline, which will open up a number of 25-man roster spots, there should be plenty of promotions of prime prospects.

Already, highly regarded youngsters like George Springer, Jonathan Singleton and Gregory Polanco are starting for their respective clubs.

Over the past week or so, the biggest name to get his shot in The Show was Andrew Heaney, the Miami Marlins left-hander who pitched well in his debut.

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USA Today

We’re now over halfway through the minor league season, and countless prospects continue to open eyes with their performances at each of the four full-season levels. And with the rookie and short-season leagues now underway, we have even more prospects to break down each week. However, well only be looking at just the hottest players from those two levels due to the small sample of games.

With teams having played around 70-plus games since Opening Day on April 3—most starting pitchers have made anywhere from 10 to 16 starts, while everyday players have amassed 300-plus plate appearances—we no longer have to worry about misleading small sample sizes.

As we did in the series’ previous installments, this week’s list of players once again combines reports on both hitters and pitchers in the same article.

Here are the hottest and coldest players at every minor league level.