Jo Adell

The Angels called Adell up Aug. 3, and at age 21, he was simply overmatched against big-league pitching. He logged 132 PA, technically losing prospect status in the short season, and had a 41.7 K%. Adell managed three barrels on 69 batted balls and ranked dead last in xwOBA. He did have a two-homer game and his max exit velocity of 115.5 mph ranked 14th in the majors, higher than the likes of George Springer, Ronald Acuna and Bryce Harper among many others. Further, Adell's sprint speed ranked in the 98th percentile, so the tools are there for him to develop into the fantasy star many have predicted. He did not appear particularly close to putting it all together, and there is a good chance Adell ends up needing more time in the minors. There is both performance risk and playing-time downside, and a wide range of outcomes with heavy opposing forces balancing the risk/reward fulcrum.

This is not a Vlad Jr. situation where we are confident in Adell debuting in late April, but he will get the call when he looks ready. He missed the first two months due to ankle and hamstring injuries and then dominated (173 wRC+, .245 ISO, 22.5 K%, 10.4 BB%) in a return to the Southern League. Adell struggled in 27 games at Triple-A (67 wRC+, 32.6 K%) and was just OK in the Arizona Fall League (.796 OPS, 29:11 K:BB in 24 games). He has at least 60-grade raw power but has 33 HR in 199 games above rookie ball (including the AFL), so he may not enter MLB ready to hit 30-plus HR. It's the same story with his plus speed -- he has an 89.3% success rate but only attempted 28 steals in those 199 games. The strikeouts are a concern, especially in the short term, but his batted-ball profile really improved last year. Adell's upside is still more abstract than substantive, but players with his raw talent are rare.

The toolsiest hitter in the 2017 MLB draft, Adell's physical gifts were too much for Low-A and High-A pitchers to handle in his first full season. He has immense raw power, plus speed for center field and a big enough arm for right. There is still work to do with his approach, and he has not been asked to make many adjustments yet, given his rapid ascent from Low-A to Double-A. Adell struck out 25.2% of the time across his three stops and over 50% of his hits at High-A and Double-A went to the pull side, so it is unrealistic to expect Adell to hit much better than .260 against big-league pitching in 2019 or 2020. That said, he won't turn 20 until April 8, so he is well ahead of schedule and has plenty of time to make the necessary adjustments against upper-level pitching. He has the talent to be a 30-20 hitter pretty early in his big-league career, and could turn into a 40-20 monster if he reaches his ceiling.

There were widespread concerns about Adell’s plate discipline and aptitude for the game prior to the 2017 draft, but he quieted the doubters while showing off monster tools, and now looks like an easy top five fantasy prospect from that class. His plus raw power and plus speed were on full display in the AZL and Pioneer League, but most importantly, he made contact at an acceptable clip. He actually improved his strikeout rate from 24.2 percent to 18.9 percent after a promotion to Orem, where his .463 BABIP muddled his overall production, but the main thing we wanted to see in 2017 was a salvageable approach, and he delivered in that respect. He pulls the ball a little too much, but it’s an understandable imperfection for an 18-year-old power hitter with a lightning-quick bat. A shoulder injury limited him to DH duty in his debut, but he has all the ingredients to be a special center fielder. There may be growing pains this year in the Midwest League, but Adell has the superstar upside, so patience is encouraged.