A few weeks back I wrote about the prospects that were dealt in the series of trades that happened involving J.D. Martinez, Sean Doolittle, Todd Frazier, and others. This past Monday was the MLB Trade Deadline and a lot of prospects were moved around, especially from teams with very good farm systems. I won’t cover all the prospects, because you simply won’t here about several of them again, but I will cover the main ones.

The Yankees got a top-flight pitcher they were looking for when they traded for Sonny Gray from the A’s in exchange for three of their highly-rated prospects. The trade is certainly a risk for the A’s given the health issues of the prospects they received, which I’ll delve into here shortly, but it could very well be a haul.

The best prospect Oakland received in the deal is Dustin Fowler (OF OAK) who is ranked 77th in baseball and had recently made his MLB debut with the Yankees. The only problem with Fowler is that in his debut he ruptured his patellar tendon trying to make a catch in foul ground. Other than that he is a potential five-tool prospect for the A’s. While at Triple-A Scranton/Wilkes-Barre this season, Fowler .293/.329/.542 with a .335 BABIP and .378 with 13 homers, 49 runs, 43 RBI, and 13 steals in 70 games.  The major issue, aside from the knee of course, is his low single-digit walk rate throughout his career. At Double-A in 2016 he walked just 3.8% of the time while walking 4.8% at Triple-A. Once he knee heals fully, he will be an everyday centerfielder with definite 20-20 upside, perhaps 20-25, who will hit .280-.290.

Oakland nabbed Jorge Mateo (SS/OF OAK AA) in the deal as well, who I have talked about before. However since the last time I talked about the speedy middle infielder, he put on a show at Double-A Trenton before the trade. He was moved up in the system due to the injury to Gleyber Torres but batted .300/.381/.525 in 30 games for the Thunder with four homes, 26 runs, 26 RBI, and 11 steals. His walk rate went back up to where it was in 2014 and his K rate dropped back to his normal range. Whether he can keep that going while switching teams has yet to be seen. His final position is also yet to be determined, but all indications are that he will move to the outfield in Oakland given their middle infield depth already in place. Mateo has the speed to play centerfield but could slot in as a speedy leftfielder as well while bringing potential 10-15 homer upside.

Finishing off the deal was the Yankees sending James Kaprielian (RHP OAK) to Oakland. The former first round pick out of UCLA is a potential ace caliber righty, when healthy, and that’s the concern with him. He has pitched just 29.1 innings in pro ball since being drafted in June of 2015 due to a few different injuries, most recently undergoing Tommy John that will have him miss the whole 2017 season. He offers potentially four plus-pitches in a mid-90s fastball that has good sink, and equal secondary pitches in a changeup, slider, and curveball. There isn’t a great sample size for Kaprielian thus far but he does have very good strikeout stuff with 36 in 29.1 innings with seven free passes given. Right now could be the perfect time to buy low on a potential ace starter.

Seconds before the deadline passed, the Dodgers and Rangers got together for a big trade involving Yu Darvish and three prospects swapping teams. Willie Calhoun (2B/OF TEX AAA) is the main prospect in the deal with the other two being further down the rankings of both organizations. Calhoun is now ranked second in the Rangers system and is a big-time power hitting middle infielder by nature, though he will likely transition to left field in the Rangers system. In the last 231 games between Double-A and Triple-A he’s hit 50 homers, 139 runs, and 155 RBI while playing mostly second base. His AVG, BABIP, and wOBA in 2017 (AAA) are very good at .298, .289, and .389 respectively which are all great for a power hitter. There isn’t much speed to speak of with just five thefts total, three of which came this season. His ceiling is that of a 30-homer and a .280 hitter in the bigs that won’t strikeout much as he has a career strikeout rate of just about 11.5%.

The last of the big trades made at the deadline was Detroit and Chicago linking up to send Alex Avila and Justin Wilson to the Cubs in exchange for Jeimer Candelario (1B/3B DET AAA). Candelario is yet another one of the highly-touted prospects in the Cubs system, but was blocked by Anthony Rizzo and Kris Bryant at the corner infield spots. There is some disagreement as to just how good Candelario can be, but going to the A.L. certainly gives him a boost in value with the addition of the DH spot available. I see Candelario as more of a 20-25 home run guy who can play an average third or first base defensively but that doesn’t bode well for him seeing playing time ahead of Nick Castellanos or Miguel Cabrera. The 23-year-old corner infielder has a minor league K-rate that hovers about 18% and this year, in 81 games, has a slash line of .266/.361/.507 with a .315 BABIP and .373 wOBA and 12 homers, 52 RBI, and 39 runs. A 12-14 percent BB-rate will increase his value in an OBP league but he will still be an average option in most formats given his average bat and power traits.