The comparisons between Yoan Moncada and Luis Robert were immediate and inevitable. Stars back in Cuba and on the radar in international scouting circles for years, the teenage phenoms both burst on the scene in the United States at age 19 -- Moncada in 2014 and Robert earlier this year.
Teenagers with five tools, a track record in international competition and the potential to impact a big league club quickly don't come around very often, so it's no surprise the two have been linked.
• Who will sign Luis Robert?
There's also a chance the young Cuban stars will be paired together for years to come. Moncada, 21, was traded from the Red Sox to the White Sox last December and could end up as Robert's teammate in the future. The White Sox, Padres, Cardinals, Reds, Astros and Athletics are in the mix to sign him when he comes eligible to enter a contract with a Major League club on May 20.

• Source: White Sox to watch Robert's workout
An 18-year-old Moncada left Cuba in 2014 and signed with the Red Sox for a record $31.5 million bonus in 2015 a series of open showcases and private workouts. Because Boston exceeded its bonus pools, the Red Sox were also on the hook for an additional $31.5 million in overage penalty.

The market for Robert, who left Cuba in November, remains unclear, but his signing bonus is expected to be less than Moncada's and more than the $4 million to $5 million bonus often paid to the top 16-year-old prospect when the international signing period begins each July 2. Robert is still working out privately for teams, and another open showcase for all clubs is possibly in the works.
Both players are physical and athletic. Robert is 6-foot-3, 205 pounds. Moncada is 6-foot-2, 205 pounds. How do Robert and Moncada compare? Let's take a look.

Players are graded on a 20-80 scale for future tools: 20-30 is well below average; 40 is below average; 50 is average; 60 is above average; and 70-80 is well above average.
Hit: Moncada -- 60 | Robert -- 55
Robert is an above-average hitter and scouts love his natural abilities at the plate, but some think the biggest knock on his game could be his hit tool. Robert has showed some swing-and-miss in game action and was fooled a few times when his Cuban squad competed against teams in the Canadian-American League last summer during their tour across the U.S. and Canada.
Moncada is a switch-hitter with an advanced approach for his age. He struck out 21 times and walked eight times in his first 68 plate appearances at Triple-A this season, and he continues to improve.
Advantage: Moncada.

Power: Moncada -- 60 | Robert -- 60
Robert might have a slight edge in raw power against Moncada, but not by much. Both hitters have shown the ability to drive the ball into the gap and hit home runs. The right-handed-hitting Robert has wowed scouts during batting practice, and the belief is that the ability will translate into games and improve as he matures and he continues to grow.
Advantage: Robert
Run: Moncada -- 65 | Robert -- 70
Robert has been clocked at 6.15 seconds in 60-yard dash and consistently runs the distance in 6.3 seconds. That's elite level speed by any standard. For his part, Moncada ran in the 6.56- to 6.6-second range during his first showcase back in November 2014. The belief is that Robert will be able to transfer his blazing speed to the basepaths and on defense in center field. Moncada is also an above-average runner and uses his speed in all parts of his game.
Advantage: Push
Arm: Moncada -- 60 | Robert -- 50
Scouts rave about Moncada's arm and have since his days as an amateur in Cuba. In fact, the versatile infielder made his big league debut last season at third base. Moncada plays in the middle of the diamond now, but he has enough arm strength to play in the outfield if needed. Robert's arm is considered average at best and strong enough to keep him in center field.
Advantage: Moncada
Field: Moncada -- 50 | Robert -- 55
Robert is an above-average defender and could get better because of his speed. He doesn't have the strongest arm, but he plays a premium position, putting him ahead of Moncada in that regard. Moncada is no slouch on defense, and his athletic ability allows him make up for any deficiencies in his game, but it's not the strongest part of his game.
Advantage: Robert