Rosario doesn’t really have much to go off of because he’s played in fewer than 50 games, but he’s ready to go. He hit .248 and hit more triples in 46 games than A-Gon and Cabrera combined for between 2016 and 2017.
Rosario should be able to use spring training to his advantage and be able to fly out of the gate when opening day comes around. If he can play in 100 games in 2018, we should easily be able to see 10 triples and at least 20 stolen bases.
Throughout the season, Rosario might also be able to rack up close to 10 home runs and about 50 runs scored while hitting .260-270.