The good news: White hit .303 with a 127 wRC+ at High-A. The bad news: he will head to Double-A this year for his age-23 season. Fortunately, his production is trending up. White was sent to Triple-A to play four games in early June, and upon returning to Modesto, he hit .318/.392/.496 with eight home runs, four steals, a 19.3 K% and a 10.0 BB%. He needs to work on getting the ball in the air a bit more (48.6 GB%) in order to hit for the type of power that would be acceptable for a first baseman. On the plus side, he has above-average speed and could chip in double-digit steals -- only Ian Desmond, Cody Bellinger and Freddie Freeman accomplished that feat at first base in 2018. White hit .257/.333/.429 in 18 Arizona Fall League games, which is a pedestrian line given his age, position and the hitter-friendly nature of that league, but it was also a small sample. If he performs as expected, White should debut in the summer of 2020.

Unfortunately, we were denied a large sample size for White in his first pro season, but the early returns are very encouraging. A quadriceps injury limited him to just 14 games in the Northwest League, but he was 38 percent better than a league average hitter and notched a 6:6 K:BB in 55 plate appearances. White has a chance to be a truly unique first base prospect, as he is billed as an excellent hitter with plus speed and debatable power. Like Cody Bellinger, White can play the outfield, but his elite defense should keep him on the infield dirt. Typically a first baseman who lacks plus power has a hard time generating fantasy value, but White's speed and hit tool could allow him to be the exception to that rule. Of course, thus far, he has shown that his power potential may have been undersold around the draft. The Mariners should assign him to the Midwest League for his age-22 season, where he could establish the potential for five-category production at first base.