Rival Views: Who is the biggest surprise one-and-done player?

CLASS OF '18 RANKINGS: Rivals150 | Team | PF | C | PG | SG | SF

Until the NBA changes its rules regarding early entry into its draft, one-and-done is going to be a major part of college hoops. With each passing year, we are seeing more players declare after just one season and there are always some surprises.

So, who are this year's surprises that have emerged as potential one-and-done players? As usual National Basketball Analysts Eric Bossi and Corey Evans have Rival views.

BOSSI'S BEST: Predicting the remaining top 2018 prospects

Whether or not he will enter the NBA Draft is still a bit of a question, but Duke freshman shooting guard Gary Trent Jr. finds himself in a much better position to leave after just one season in Durham than many - myself included - expected.

Don't get me wrong, I've always viewed Trent as a potential NBA player and he was a five-star prospect in high school who was expected to make an immediate impact at Duke. However, he's done more than anticipated. He's No. 2 on the team in scoring (behind potential No. 1 overall pick Marvin Bagley III) at 15.1 points per contest and is shooting just over 43 percent from three on the season. However, if you look at his play in the ACC he's ramped things up to 17.9 points per game and a ridiculous 51.6 percent from behind the three-point line.

Given his strength, size and ability to bury deep jumpers, Trent has put himself into very good position to be taken as a first-round pick if he wants to leave after this season. Luckily for Duke, it is in good shape to replace him. The Blue Devils signed the nation's top shooting guard, Cameron Reddish, and former four-star Alex O'Connell will be back as a more-than-capable sophomore next season.

One other guy to watch as a sneaky one-and-done candidate is Missouri's Jontay Porter. His numbers don't jump off the page at 8.9 points and 6.6 rebounds, but I've spoken with NBA personnel who tell me that Porter would get a long look in the latter part of the first round because of his skill, size and upside. Remember, he should be a senior in high school this season.

Heading into the season, Shai Alexander was arguably the least heralded freshman at Kentucky behind Kevin Knox, P.J. Washington and Hamidou Diallo. Yet now, Alexander looks more than capable of becoming Kentucky’s next one-and-done prospect.

The No. 34 prospect in the 2017 class, Alexander was looked at more as a long-term piece for the Wildcats, the type of guard that could incrementally evolve into a key piece for future seasons. There were questions about his shot selection and efficiency as a whole. Thanks to his continued development and work ethic, the Canadian has become a respectable 35-percent shooter from distance, while making nearly half of his field goal tries. Toss in solid averages of more than 13 points, three rebounds, four assists and close to two steals per game, along with great measurables, and Alexander’s NBA profile continues to strengthen.

If Alexander does decide that the NBA is where he is meant to be next year, how do the Wildcats replace their top two-way producer in the backcourt? Quade Green will likely come back for his sophomore season and will be joined by Immanuel Quickley. Keldon Johnson should also strengthen the Wildcats’ perimeter group and will bring an alpha-dog type of mentality that could make him Kentucky's top perimeter defender, similar to the role that Alexander currently possesses.

While Alexander is making noise with his upward trajectory within many NBA personnel members’ eyes, the same could be said for Arkansas freshman Daniel Gafford. A 6-foot-10 center with a 7-foot-4 wingspan, Gafford could leave head coach Mike Anderson in a difficult position if he were to leave after this season. What makes things even more difficult is the fact that the Hogs will graduate three others in the frontcourt this spring. However, the enrollments of Rivals150 big men Reggie Chaney and Ethan Henderson should help their cause.