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The biggest development for this week is that Luis Robert (hip) and Alex Bregman (quadriceps) are both poised to return from lengthy absences. They're of a high enough stature that you'll probably want to activate them in all but the shallowest leagues.

That's perhaps easier to say for Robert than for Bregman, whose Astros are the only team scheduled to play just five games this week. Meanwhile, seven teams are scheduled for seven. The Rockies are on the road this week, which eliminates the possibility of any Coors Field magic, and not a single AL team will be traveling to an NL park. 

That should cover the usual questions addressed at the top of this article, so let's get right to the sleepers. Below are my 10 favorites for Week 20 (Aug. 9-15), all rostered in less than 80 percent of CBS Sports leagues.

Sleeper hitters for Week 20 (Aug. 9-15)
STL St. Louis • #48 • Age: 27
Matchups
@PIT3, @KC3
ROSTERED
58%
If the improved strikeout rate is legit -- and it has slipped a little of late -- then Harrison Bader could be a true five-category threat. The toughest pitcher on the schedule this week is Brad Keller, which isn't saying much.
STL St. Louis • #27 • Age: 26
Matchups
@PIT3, @KC3
ROSTERED
73%
He gets the same favorable matchups as Bader and has been picking it up at the plate of late. His power numbers have slipped some from early in the season, but his .598 xSLG suggests that's bound to change.
BOS Boston • #5 • Age: 30
Matchups
TB3, BAL3
ROSTERED
70%
The notoriously streaky player hasn't cooled off yet, and it's not like he's facing any shutdown pitchers this week. Stick with him for now.
CHW Chi. White Sox • #25 • Age: 23
Matchups
@MIN3, NYY3
ROSTERED
71%
The rookie is batting over .300 with an OPS near .900 since mid-June, and he's been in the lineup virtually every day as well. The White Sox have the third-best matchups this week.
CIN Cincinnati • #9 • Age: 33
Matchups
@CLE1, @ATL3, @PHI3
ROSTERED
67%
It's a roll of the dice with him only recently returned from a lengthy absence for a bruised heel, but he reacclimated himself well over the weekend. His caliber of bat isn't usually available on the waiver wire.
MIL Milwaukee • #16 • Age: 31
Matchups
@CHC4, @PIT3
ROSTERED
72%
The Brewers leadoff hitter has maintained a batting average near .300 all year and hasn't been a total zero for power or speed. Of the seven teams scheduled for seven games this week, the Brewers have the best matchups by far.
MIL Milwaukee • #11 • Age: 26
Matchups
@CHC4, @PIT3
ROSTERED
21%
He makes hard contact with a moderate strikeout rate, and the numbers are beginning to reflect it. You might hesitate to use him if there were a bunch of lefties on the schedule, but it looks like the Brewers will face just one in their seven games.
CHW Chi. White Sox • #12 • Age: 31
Matchups
@MIN3, NYY3
ROSTERED
69%
A sneaky top-15 performer at second base this year, Cesar Hernandez is never a bad choice to fill out you lineup and especially not in a week when the opposing pitchers include the illustrious trio of Charlie Barnes, Griffin Jax and Bailey Ober.
MIL Milwaukee • #6 • Age: 35
Matchups
@CHC4, @PIT3
ROSTERED
17%
Lorenzo Cain has been doing Lorenzo Cain things since returning from a lengthy absence for a hamstring injury last week, hitting for average while stealing some bases. He's getting regular at-bats, too, so you can hope he'll make the most of the No. 1 hitting slate this week.
OAK Oakland • #1 • Age: 34
Matchups
@CLE3, @TEX3
ROSTERED
40%
He appears to be the priority over Jed Lowrie at second base since coming over from the Nationals and has been a good enough contact hitter to take advantage of the second-best matchups this week. Having three lefties on the schedule can only help.

Best hitter matchups for Week 20

1. Brewers @CHC4, @PIT3
2. Athletics @CLE3, @TEX3
3. White Sox @MIN3, NYY3
4. Red Sox TB3, BAL3
5. Cardinals @PIT3, @KC3

Worst hitter matchups for Week 20

1. Phillies LAD3, CIN3
2. Diamondbacks @SF2, SD4
3. Rockies @HOU2, @SF4
4. Nationals @NYM3, ATL3  
5. Astros COL2, @LAA3