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When you see mostly one-start pitchers on this list, you can bet the sleeper selection is rather weak, and I'd say that applies for this week, too. I'm taking some pretty big swings after No. 5 here, which makes now as fine a time as any to remind you that you'd rather not be in a position where you have to turn to a sleeper pitcher at all.

But No. 1 on this list gets a full-throated recommendation from me. He's not the most available by any stretch, but if you can still grab Jon Gray for his two road starts, I'd say it's worth it in all formats.

All 10 of these sleeper pitchers for Week 20 (Aug. 9-15) are rostered in less than 80 percent of CBS Sports leagues.

Sleeper pitchers for Week 20 (Aug. 9-15)
COL Colorado • #55 • Age: 29
Matchups
at HOU, at SF
ROSTERED
78%
Not only is he on the road for his two starts (which is always a good thing for a Rockies pitcher -- I don't care what the splits say) but he's also enjoying arguably the best stretch of this career, his slider looking particularly sharp in his eight starts since returning from a flexor strain.
SF San Francisco • #62 • Age: 24
Matchups
vs. COL
ROSTERED
52%
The Rockies lineup on the road may be the best matchup of all, and Logan Webb doesn't need much help with the way he's been pitching lately. He has a 2.10 ERA in six starts since returning from a shoulder strain.
COL Colorado • #26 • Age: 27
Matchups
at SF
ROSTERED
72%
He doesn't seem to have lost anything from his recent bout with forearm tightness and looked particularly strong in his latest start over the weekend. The Giants offense is only middle-of-the-road against lefties.
TB Tampa Bay • #62 • Age: 24
Matchups
at MIN
ROSTERED
75%
Taking a little off his fastball has led to better results overall, most notably three consecutive quality starts. The Twins lineup isn't what it once was.
WAS Washington • #41 • Age: 28
Matchups
at NYM
ROSTERED
54%
He's continued to roll since his brief bout with elbow inflammation, turning in two strong starts in three chances. You can't knock the consistency even if the underlying numbers fall short, and this week's matchups is clearly in his favor.
TB Tampa Bay • #61 • Age: 21
Matchups
at BOS, at MIN
ROSTERED
50%
He's only a start removed from striking out eight Yankees in six shutout innings, and the start that followed wasn't so bad, really. You like the talent even if the matchups are iffy.
OAK Oakland • #19 • Age: 27
Matchups
at TEX
ROSTERED
73%
The Rangers lineup is that much more miserable with Joey Gallo no longer hitting in the middle of it, and Cole Irvin just continues to get the job done even if it's not exactly clear how.
SF San Francisco • #47 • Age: 35
Matchups
vs. COL
ROSTERED
70%
The crafty veteran continues to get by on guile, keeping runs off the board even if he typically falls short of the minimum workload for a quality start. Again, the Rockies lineup is terrible away from Coors Field.
MIA Miami • #74 • Age: 27
Matchups
at SD, vs. CHC
ROSTERED
56%
The whiffs have mostly dried up for the surprise rookie, but he's still generally keeping runs off the board. The Cubs lineup is obviously a shell of its former self.
DET Detroit • #29 • Age: 24
Matchups
at BAL
ROSTERED
65%
He's been really inconsistent lately, and the Orioles actually perform admirably against lefties. Still, he's capable of dominating when things break right.