SURPRISE, Arizona – One of the most important questions for the MLB 2019 season is what role will the top hopes of the game play in their parent clubs.

The third goal, Toronto Blue Jays MVP Vladimir Guerrero Jr. and New York Mets first baseman Peter Alonso are set to open the season on a Major League formation. .

The two young players did incredible things on Saturday night at the annual event, which was won by the West All-Stars 7-6 on an unrestrained single by receiver Meibrys Viloria of Kansas City Royals.

Guerrero, 19, outlined some of the skills that have made him the undisputed main candidate for minors. In the fifth inning, he hit a double from the left field wall with an exit speed of 117 mph.

To put things in perspective, a total of 11 league majors last season hit a ball with an exit speed of 117 mph or more. It's 11 players … ALL THE SEASON.

It's almost comical how good Guerrero was last season. The 2018 Hall of Fame son scored a combined total of .381 / .437 / .636 with 20 home runs at four different minor league levels. However, the Jays have chosen not to promote it to adults. It looks like it's going to make this decision even tougher this spring, especially since it's second in the AFL with an average of .393.

Guerrero also walked, hit on an error in the ninth and scored a two-run tripled by San Diego Padres player Buddy Reed.

Reed then scored the winning point of Viloria's single: named MVP of the game.

Earlier in the game, it seemed that Alonso could be a favorite for the allotment.

In his first match, Alonso, 23, faced Nate Pearson, the right-hander of the Blue Jays – who lit the baseball radar's radar cannon by repeatedly hitting 103 mph with his fastball, and overtaking at 104.

(The skeptic might wonder if the weapon could have run a little hot in order to create buzz. However, a scout present confirmed that the 104 was legitimate.)

Faced with one of these fastballs of 100 km / h, Alonso reversed the situation by scoring a home run in the middle of the field, giving the East a 1-0 lead.

Alonso was not only impressive with his bat. For the second day in a row, he also showed glovework.

After Guerrero doubled in the fifth and was third in the OU, the East team brought in the infield to prevent the race from scoring. The next hitter, Cavan Biggio of the Jays, hit a scorer that Alonso managed to cross in jump jumps and score first before Guerrero could move forward.

Alonso had already played the same thing the day before at Scottsdale Stadium, diving to sneak a short jump and win the bag in front of the runner. If the reason the Mets did not call him this season was because he needed to work on his defense, that excuse no longer seems to fly.

The Mets with Alonso and the Blue Jays with Guerrero hold the key to the contribution of the top prospects in the major leagues this season. Their service-time concerns were one of the main topics of discussion this weekend at the first conference held in Arizona by members of Baseball Headquarters.

In early 2019, this weekend, Guerrero was eliminated in the second round – he was quite 20th in the world – although he did not play a day in the major tournaments and that # 39, it is not guaranteed that it will appear on the Blue Jays' lineup.

The prevailing view is that he will spend the first two weeks in the miners, so the Jays will do it for a further year and then encourage him to take the base position at the third base. He certainly proved that he had little to do when playing against minor pitchers.

The same can be said for Alonso, whose focus was the most pleasant surprise for me this trip. His bat certainly seems to be playing in New York.

The future is certainly bright for these two rising stars.

(More information on some of the other AFL prospects coming soon …)

Follow Gardner on Twitter @SteveAGardner