Latest MLB Mock Draft Has Nationals Selecting Another High-Upside Pitcher

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The Washington Nationals are in an interesting place when it comes to their present and future.
Right now, there is no doubt that the weakest unit on their major league roster is their pitching staff. Not only did their bullpen have the worst ERA in the MLB last season, but their starting rotation finished with the second-worst. And without MacKenzie Gore to lead the way, there's a good possibility that both their relief and starting staffs could have the highest ERAs in 2026.
However, the arms the Nationals have in their pipeline have a chance to be special. Travis Sykora looked like a future ace before his Tommy John procedure last year created question marks about his future. Jarlin Susana has wipeout stuff and could be a dominant force. Same goes for Luis Perales. And both Alex Clemmey and Landon Harmon have top-of-the-rotation potential.
That's a good place for Washington to be when it comes to the future. But Joel Reuter of Bleacher Report doesn't have them stopping there in their pursuit of building an array of elite arms.
Nationals Select Liam Peterson in Latest Mock Draft

In Reuter's latest mock draft, he has the Nationals selecting right-handed pitcher Liam Peterson out of the University of Florida with the 11th overall pick. He would be the latest high-upside arm added to Washington's pipeline, as his strikeout stuff could have him get drafted much higher than this slot.
"If the results start to better match the pure stuff this spring, he could be the first arm off the board and a top-five selection, but potential alone makes him a clear first-round prospect," Reuter wrote about the 6-foot-5 starter.
The strikeout stuff is clear when watching Peterson. He rung up 172 batters in 132 innings pitched across 33 appearances (30 starts) during his freshman and sophomore years. But he also has a career ERA of 5.18 that included a mark of 4.28 across 16 outings (15 starts) last season.
Peterson punches out Stanford here with the yak.
— Gator Diamond Pod (@GatorDiamondPod) January 27, 2026
That’s 4 straight K’s for Liam. pic.twitter.com/74niadejDX
Still, when it comes to upside, there aren't many better in this 2026 draft than Peterson. His fastball sits in the mid-90 mph range and he can reach the upper 90s. He combines that with a slider and 12-6 curveball action that MLB Pipeline believes is his best off-speed pitch.
If Peterson falls to Washington at No. 11, then it's hard to imagine they wouldn't select him. Not only would they be landing someone who has top-five pick potential, but he would be the latest pitcher in their farm system who has a chance to become an ace if he reaches his ceiling.
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Brad Wakai graduated from Penn State University with a degree in Journalism. While an undergrad, he worked at the student radio station covering different Penn State athletic programs like football, basketball, volleyball, soccer and other sports. Brad became the Lead Contributor for Nittany Lions Wire of Gannett Media where he continued to cover Penn State athletics. Currently, Brad is the Publisher for Washington Nationals On SI and covers multiple teams across the On SI network. He is the host of the sports podcast I Said What I Said, where he and his co-host discuss topics across the NFL, College Football, the NBA and other sports. You can follow him on Twitter: @bwakai