Mateo, who's slashing .333/.374/.551 with eight doubles, eight triples, two home runs, 24 RBI and eight stolen bases across 29 games with Triple-A Las Vegas, could be the next callup for the Athletics, Martin Gallegos of MLB.com reports.
As those numbers imply, the 23-year-old has been tormenting Triple-A arms throughout the season while putting in time at both second base and shortstop. While there have been knocks on Mateo's maturity and focus in the past, the difference between his body of work at the Triple-A level in 2018 compared to last is relatively stark. Mateo slashed a middling .230/.280/.353 across 510 plate appearances at Nashville last season, and he's already amassed half of the 36 extra-base hits he posted during that tenure in 363 fewer opportunities thus far in 2019.
Mateo is slashing .375/.412/.563 across his first 51 plate appearances at Triple-A Las Vegas.
It's a small sample, but dynasty owners have to be thrilled at the promising prospect's red-hot start. The impressive line is a well-balanced one as well, as it's comprised of five extra-base hits (two doubles, two triples, one home run), eight RBI, three walks, four stolen bases and 11 runs. Mateo had a rougher go of it in his first exposure to Triple-A arms last season, slashing .230/.280/.353 across 510 plate appearances at Nashville. A 27.3 percent strikeout rate helped lead to those middling numbers, and he's provided some early reason for optimism by whittling that figure to 19.6 percent thus far over the modest sample size.
Mateo was optioned to Triple-A Las Vegas on Sunday, Jane Lee of MLB.com reports.
Mateo went 5-for-18 with an RBI and three runs scored during his time in major-league camp. He currently ranks as Oakland's No. 4 prospect, although he did struggle at the dish at Triple-A a season ago (.230/.280/.353 batting line through 131 games).
Mateo is slashing just .196/.237/.297 with 15 extra-base hits (nine doubles, six triples) over 225 plate appearances across 58 games at Triple-A Nashville.
The six three-baggers certainly is an eye-opener, but there's not much else to write home about with respect to Mateo's body of work with the Sounds thus far. After posting .300 and .292 averages, respectively, over a pair of Double-A stops in 2017 with the Yankees' and Athletics' organizations, the 22-year-old has found Triple-A arms exceedingly difficult to solve. That might be best summed up in his strikeout rate, which has climbed to a career-high 30.2 percent in Nashville, a near-eight-point boost from the 22.4 percent figure he'd generated at Double-A Midland last season. With Marcus Semien playing on just a one-year contract and arbitration-eligible in 2019, there was hope that Mateo could potentially be ready for a promotion by the end of this season. However, if his current numbers are any indication, he'll need substantially more seasoning before that can be realistically considered.
| 19 |
| 20 |
| 21 |
| 22 |
| 23 || 24 |
| 26 |
| 27 |
| 28 |
| 29 |
| 30 || 31 |
|More Batting Stats|
|Minor League Batting Stats|