Will Smith(P-SF): Smith struck out two in a scoreless ninth against the D-Backs to earn his seventh save in eight chances. The left-hander has been stellar in 2018, posting a 50:7 K:BB ratio, and a 1.27 ERA. Injuries at the back end of the Giants pen have given Smith an opportunity to showcase his skills, and with a 16 percent swinging strike rate and a 40 percent chase rate, he isn't disappointing. His slider is sharper than ever, which has increased his effectiveness against RHH's and enabled him to keep the ball in the yard. While you can't trust most LHP's in keeper leagues to keep closer gigs, Smith's skill set is worth the investment.
Amed Rosario(SS-NYM): Rosario went 0-for-3 with two walks, two runs, and one stolen base vs. the Braves. With a .271 wOBA and a 70 wRCplus, Rosario has struggled offensively in his first full season. However, I see a silver lining here, as the 22-year-old has decreased his swinging strike rate over five-percentage points and his chase rate over three-percentage points while increasing his contact rate over seven-percentage points from last season. He has even upped his fly ball and hart hit rates, and while he looks a ways away from reaching his full potential, he's a player I'd be buying low on in keeper formats.
Jack Flaherty(P-STL): Flaherty won after allowing three hits and one walk with seven strikeouts over six scoreless innings against the Pirates. This was the first start since July 3rd in which Flaherty has gone at least six innings and only the sixth such start of the season. If he can find a way to be more efficient--especially by increasing his first-pitch-strike-percentage--and pitcher deeper into games, Flaherty has a chance to be a true fantasy asset. He throws four quality pitches he's learning how to sequence and is already posing a strikeout rate near 30 percent. Buy.
Luis Castillo(P-CIN): The right-hander lost after allowing two runs on six hits (one homer) and two walks with three strikeouts over 5.1 innings against the Nationals. Castillo hasn't allowed more than two runs in each of his last four starts as the right-hander continues to turn his season around. While he's been due for positive regression all season, he continues to struggle on the road (opponents posting a .364 wOBA) and against LHH's (opponents posting a .376 wOBA). I'm concerned about his fastball velocity dip and his split issues, so while he's talented enough to be a number two starter someday, he shouldn't be viewed as anything more than a high-end number four heading into 2019.
Luke Weaver(P-STL): Weaver ($7200) looks like a solid tournament play today on DraftKings for his matchup at the Marlins. The right-hander, who has been significantly better on the road, travels to Marlins Park, which is currently ranked 28th in overall Park Factors for the season. The Marlins are also 27th in overall offense vs. RHP's, so while Weaver has struggled against LHH's, he has a chance to pick his spots against the Marlins lineup. While it's a risky play given Weaver's inconsistencies, the price and the matchup look right.
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