Taylor Trammell was given an early heads up he had made the Seattle Mariners Opening Day roster, but for a trio of top prospects they had to wait until the last few days before hand to learn their first big league experience would come on Opening Day.
For the Cincinnati Reds, they roll out an Opening Day lineup of three third basemen, with stud prospect Jonathan India hitting seventh and playing second base, a position he has all of five games of pro ball under his belt playing. The Florida Gator prospect has plenty of athleticism though and should be able to hold down the position just fine despite having significantly more arm strength than needed at the keystone position. He is a bat first guy with plenty of pop that will likely move up in an underrated lineup. He could be a guy that flirts with the ROY this season.
Also batting seventh in his MLB debut is Kyle Isbel in the regular season battle of Surprise Stadium, the Kansas City Royals and Texas Rangers spring complex. Isbel is debuting in right field despite having an average arm at best, but there is a shot he settles in as the center fielder given he has plus wheels and quality instincts that should be enough to stick up the middle. He was a third round pick in 2018 out of UNLV that saw the Royals add Brady Singer, Jackson Kowar, and Daniel Lynch in the first round, but a scout with the Royals at the time told me there were people in the organization who felt it was Isbel who would turn out to be their best selection in that draft.
The Chicago White Sox get the late start on Opening Day, but the most anticipated debut will come in that game as Andrew Vaughn has made the roster and is expected to get the start at first base (although it could be DH with Jose Abreu at first). Vaughn was arguably the best player in the country in 2019 despite Adley Rutschman going first overall and Bobby Witt Jr. going second, but the White Sox were thrilled to get Vaughn with the third pick. There was no argument as to who was the best pure hitter that year, as Vaughn was far and away the top of that list, and he has incredible power to go with it. He is not the typical slugger of this generation that will be massive power and massive strikeouts, instead he is a guy that can hit over .300 and put the ball in play most his trips to the plate. Defensively he is not going to wow anyone, but the bat will more than make up for any defensive issues that arise.