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Welcome RotoBallers to our mid-week fantasy baseball waiver wire rankings list for Week 21 - August 7 through August 13 to help you stay on top of the waiver wire, especially in leagues that allow daily moves. The Mariners called up top pitcher prospect Emerson Hancock, and he made his MLB debut on Wednesday. Hancock did not factor into the decision, allowing a run on two hits and three walks while striking out three over five innings. Top prospects such as Kyle Manzardo, Colt Keith, Pete Crow-Armstrong, Masyn Winn, Heston Kjerstad, Troy Johnston, Everson Pereira, and Matt Mervis patiently await the call to the big leagues.
Some notable recent performances include Oakland A's second baseman Zack Gelof, slashing .310/.375/.690, three home runs, five RBI, five runs, and a stolen base over his last eight games. Chicago Cubs Mike Tauchman continues to mash, hitting .407 (11-for-27) with two home runs and seven RBI across his previous nine contests. Toronto Blue Jays second baseman Davis Schneider is slashing .474/.565/.789 with two home runs and five RBI across 23 plate appearances since being promoted to the big leagues on August 4. Texas Rangers third baseman Josh Jung (thumb) underwent surgery Wednesday to repair a fractured thumb. The 25-year-old is expected to miss the next six weeks. Toronto Blue Jays star shortstop Bo Bichette (knee) is on the injured list with patellar tendinitis in his right knee. Reinforcements are on the way as Cedric Mullins (groin) is set to return from the injured list on Friday after missing multiple weeks with a groin strain.
This week's waiver wire rankings feature players such as Mike Tauchman, Zack Gelof, Trevor Story, Emerson Hancock, Davis Schneider, Luis Rengifo, Brice Turang, Gregory Santos, Wade Miley, Kutter Crawford, Curtis Mead rank among others. We're here, as always, to help you stay on top of the latest waiver wire options, especially in leagues that allow for daily moves. Prospects that are making impacts continue to be called up, so you'll need to be informed. Be sure to stay on top of our weekly waiver wire rankings and turn on MLB news alerts to stay ahead of the curve. Once you're done here, check out our fantasy baseball prospects articles for the latest names to stash and pick up.
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Fantasy Baseball Waiver Wire Pickups List
For anyone who isn't familiar, every Friday, Saturday, and Sunday, we release all sorts of fantasy baseball waiver wire articles. As part of that, Nick Mariano releases our waiver wire rankings list on Sundays to help you prioritize which players to target as free agent adds off waivers.
In addition to that, we are also putting out a second waiver wire rankings list mid-week. Since many fantasy baseball leagues have daily waiver wire moves or multiple waiver wire runs per week for adding players, this mid-week rankings list should help you keep track of players emerging in the middle of the week before we reach Sunday.
Below you will see our list of waiver wire pickups in our prioritized order. There should be waiver wire recommendations here for all sorts of league sizes, along with the position(s) for the player and the rostered percentages.
| Rank | Player Name | Pos. | % Ros. | Baller Move |
| 1 | Trevor Story | 2B | 57 | Add in All Leagues |
| 2 | Mike Tauchman | OF | 31 | Add in 12+ Team Leagues |
| 3 | Davis Schneider | 2B | 33 | Add in 12+ Team Leagues |
| 5 | Grayson Rodriguez | SP | 53 | Add in 12+ Team Leagues |
| 6 | Zack Gelof | 2B | 15 | Add in 12+ Team Leagues |
| 7 | Kyle Finnegan | RP | 56 | Add in 12+ Team Leagues |
| 8 | Nick Pivetta | SP, RP | 53 | Add in 12+ Team Leagues |
| 9 | Jack Flaherty | SP | 55 | Add in 12+ Team Leagues |
| 10 | Orlando Arcia | 2B, SS, OF | 60 | Add in 12+ Team Leagues |
| 11 | Tarik Skubal | SP | 45 | Add in 12+ Team Leagues |
| 12 | TJ Friedl | OF | 38 | Add in 12+ Team Leagues |
| 13 | Wilmer Flores | 1B, 2B, 3B | 54 | Add in 12+ Team Leagues |
| 14 | Tyler O'Neill | OF | 55 | Add in 12+ Team Leagues |
| 15 | Joey Votto | 1B | 22 | Add in 12+ Team Leagues |
| 16 | Amed Rosario | SS, OF | 62 | Add in 12+ Team Leagues |
| 17 | James Outman | OF | 59 | Add in 12+ Team Leagues |
| 18 | Brady Singer | SP | 49 | Add in 12+ Team Leagues |
| 19 | Curtis Mead | 2B, 3B | 4 | Add in 12+ Team Leagues |
| 20 | Marcell Ozuna | OF | 52 | Add in 12+ Team Leagues |
| 21 | Randal Grichuk | OF | 31 | Add in 12+ Team Leagues |
| 22 | MJ Melendez | C, OF | 53 | Add in 12+ Team Leagues |
| 23 | Maikel Garcia | 3B, SS | 36 | Add in 12+ Team Leagues |
| 24 | Christian Encarnacion-Strand | 1B | 44 | Add in 12+ Team Leagues |
| 25 | Jose Siri | OF | 11 | Add in 12+ Team Leagues |
| 26 | Jordan Westburg | 2B, 3B, SS | 23 | Add in 12+ Team Leagues |
| 27 | Kutter Crawford | SP, RP | 37 | Add in 12+ Team Leagues |
| 28 | Brice Turang | 2B, SS | 11 | Add in 12+ Team Leagues |
| 29 | Sal Frelick | OF | 34 | Add in 12+ Team Leagues |
| 30 | Cole Ragans | SP, RP | 20 | Add in 12+ Team Leagues |
| 31 | Will Benson | OF | 14 | Add in 12+ Team Leagues |
| 32 | Trent Grisham | OF | 7 | Add in 12+ Team Leagues |
| 33 | Gregory Santos | RP | 18 | Add in 12+ Team Leagues |
| 34 | Willi Castro | 2B, 3B, SS, OF | 24 | Add in 12+ Team Leagues |
| 35 | Jon Berti | 2B, 3B, SS, OF | 23 | Add in 12+ Team Leagues |
| 36 | Giovanny Gallegos | RP | 49 | Add in 12+ Team Leagues |
| 37 | Jorge Polanco | 2B | 32 | Add in 12+ Team Leagues |
| 38 | Cristopher Sanchez | SP, RP | 30 | Add in 12+ Team Leagues |
| 39 | Wade Miley | SP | 44 | Add in 12+ Team Leagues |
| 40 | Luis Rengifo | 2B, 3B, SS, OF | 37 | Add in 12+ Team Leagues |
| 41 | Gary Sanchez | C | 30 | Add in 12+ Team Leagues |
| 42 | Steven Matz | SP | 46 | Add in 12+ Team Leagues |
| 43 | Seth Lugo | SP | 42 | Add in 12+ Team Leagues |
| 44 | Gavin Williams | SP | 31 | Add in 12+ Team Leagues |
| 45 | Emerson Hancock | SP | 12 | Add in 12+ Team Leagues |
| 46 | Mike Moustakas | 1B, 3B | 9 | Add in 12+ Team Leagues |
| 47 | Michael Conforto | OF | 31 | Add in 12+ Team Leagues |
| 48 | Justin Lawrence | RP | 26 | Add in 12+ Team Leagues |
| 49 | Carlos Hernandez | SP, RP | 14 | Add in 12+ Team Leagues |
| 50 | Matt Wallner | OF | 11 | Add in 12+ Team Leagues |
| 51 | Zack Littell | SP, RP | 8 | Add in 12+ Team Leagues |
| 52 | Drew Waters | OF | 2 | Add in 12+ Team Leagues |
| 4 | Tommy Pham | OF | 11 | Add in 12+ Team Leagues |
| 53 | Luis Medina | SP | 7 | Add in 12+ Team Leagues |
| 54 | Cade Marlowe | OF | 3 | Add in 15+ Team Leagues |
| 55 | Yan Gomes | C | 19 | Add in 15+ Team Leagues |
| 56 | Jake Bauers | OF | 5 | Add in 15+ Team Leagues |
| 57 | Logan Allen | SP | 31 | Add in 15+ Team Leagues |
| 58 | Lawrence Butler | OF | 1 | Add in 15+ Team Leagues |
| 59 | Trevor May | RP | 27 | Add in 15+ Team Leagues |
| 60 | Yainer Diaz | C | 24 | Add in 15+ Team Leagues |
| 61 | Oscar Gonzalez | OF | 16 | Add in 15+ Team Leagues |
| 62 | Jose Urquidy | SP | 37 | Add in 15+ Team Leagues |
| 63 | Erik Swanson | RP | 27 | Add in 15+ Team Leagues |
| 64 | Kyle Hendricks | SP | 36 | Add in 15+ Team Leagues |
| 65 | Josh Bell | 1B | 38 | Add in 15+ Team Leagues |
| 66 | Mike Clevinger | SP | 24 | Add in 15+ Team Leagues |
| 67 | Freddy Fermin | C | 15 | Add in 15+ Team Leagues |
| 68 | Graham Ashcraft | SP | 42 | Add in 15+ Team Leagues |
| 69 | Mitch Garver | C | 17 | Add in 15+ Team Leagues |
| 70 | David Peterson | SP | 6 | Add in 15+ Team Leagues |
| 71 | Nolan Jones | 1B, OF | 22 | Add in 15+ Team Leagues |
| 72 | Hyun Jin Ryu | SP | 18 | Add in 15+ Team Leagues |
| 73 | Kerry Carpenter | OF | 7 | Add in 15+ Team Leagues |
| 74 | Max Kepler | OF | 14 | Add in 15+ Team Leagues |
| 75 | Brandon Pfaadt | SP | 8 | Add in 15+ Team Leagues |
| 76 | Joel Payamps | RP | 39 | Add in 15+ Team Leagues |
| 77 | Jose Quintana | SP | 17 | Add in 15+ Team Leagues |
| 78 | Everson Pereira | OF | 2 | Add in 15+ Team Leagues |
| 79 | Samad Taylor | 2B, OF | 1 | Add in 15+ Team Leagues |
| 80 | Zack Short | 2B, 3B, SS | 0 | Add in 15+ Team Leagues |
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