Parker Messick Tops 3 Tuesday Pitchers Who Could Boost Fantasy Baseball Rosters (April 21, 2026)

If you’re looking for pitchers to stream ahead of Tuesday’s fantasy baseball slate, here are three options worth considering regardless of whether you play in season-long formats or DFS contests.

Why You Should Stream Parker Messick Against the Astros

Parker Messick came close to pitching a no-hitter against the Baltimore Orioles in his last start, and while the Houston Astros are a tough matchup, it’s impossible not to consider starting him based on how dominant he looked the last time out.

His outing was better than what the final line of 9 strikeouts and 2 runs allowed on 2 hits and 2 walks across 8-plus innings indicates. The Astros have been the second-best offense in baseball in terms of OPS (.790) just behind the Los Angeles Dodgers, but Messick is impossible to bench right now until proven otherwise.

And why would you bench a pitcher who sports a 1.05 ERA, 0.78 WHIP, and 25:7 K:BB across 25.2 frames?

Why Merrill Kelly Is an Excellent Streaming Option vs. the White Sox

There isn’t a lot of evidence out there when it comes to Merrill Kelly, as he only made his season debut on April 15 but posted a solid, yet unspectacular, stat line. He tossed 5.1 innings of 2-run ball, but he allowed 5 hits and a home run while posting a 3:4 K:BB.

What’s even more concerning is that Kelly only tossed 46 of his 86 pitches for strikes in his season debut, but he has a great matchup to turn things around when facing the Chicago White Sox.

Chicago has the fifth-worst collective OPS in the majors ahead of Tuesday’s slate, and they also rank in the bottom 10 in total strikeouts with 208 in 22 games. They’re striking out in nearly 29% of their at-bats.

If Kelly wants to show signs of a turnaround after an uneven first start, he has an excellent matchup to do so.

Why Reynaldo Lopez Remains a Top Streaming Target in Fantasy Baseball

Reynaldo Lopez is far from being the best pitcher in the Atlanta Braves rotation, but it’s hard to ignore what he’s done so far this season. One could say he had his worst start of the 2026 season against the Miami Marlins on April 14, as he allowed 4 runs (3 earned) while striking out 6 and walking a season-worst 3 across 5 innings in a no-decision.

But prior to that, he had gone 1-0 with a 1.15 ERA, 0.96 WHIP, and 13:5 K:BB in 15.2 innings in his previous 3 outings.

Tuesday’s matchup is against the Washington Nationals, and even though the Nationals aren’t the worst team in the NL by any means, as they enter Tuesday’s slate with the seventh-best collective OPS in the majors (.727), they’re also overachieving significantly.

If Lopez is able to improve his command compared to his last start, he could be in line to deliver another strong showing. If you have the chance to stream Lopez, give him a go.