This week's fantasy baseball waiver wire targets feature a mix of under-the-radar contributors making an impact as we approach the halfway point of the MLB season. Otto Lopez, the Miami Marlins' versatile infielder, has been on fire with a .301 batting average in June, showcasing his potential for both power and speed. The Brewers' Isaac Collins is seizing his opportunity with regular playing time, hitting .309 in his last 19 games. Gary Sanchez, now the primary catcher for the Orioles, is making waves with a .354 average and power surge, making him an attractive trade candidate. Outfielder Jake Meyers of the Astros is a solid addition as he’s raised his batting average to .317 with key contributions in stolen bases. Lastly, Tyler Freeman of the Rockies brings significant upside with his ability to contribute in multiple categories, especially if he secures a top spot in the batting order.

In Week 12 of the 2025 MLB season, savvy fantasy baseball managers should consider streaming outfielders like Jo Adell and Gavin Sheets. Adell has been on a tear, boasting a .297 batting average with six home runs in June, while Sheets adds power with 11 home runs this season. Meanwhile, Jesús Sánchez of the Miami Marlins, despite a modest season, shows promise with a .751 OPS against right-handers.

Jake Meyers of the Houston Astros could provide batting average support and speed, as he’s hit .300 recently and stolen 10 bases. Michael Conforto remains a deeper league option, while players like Dane Myers and Max Kepler are also heating up. Don't overlook these potential waiver wire gems, especially with favorable matchups ahead.

Lance McCullers Jr. (0-1, 6.57) is set for his fourth start since returning from an arm injury, taking the mound for the Houston Astros as they face off against the Oakland Athletics. Opposing him will be Luis Severino (1-4, 4.11), who aims to improve his performance on the road. This matchup at Daikin Park is scheduled for 1:10 PM on Wednesday, and fans can catch the action on the Space City Home Network or listen in on 790 AM and 93.3 FM.

Before the game, there are two notable storylines for the Astros. First, Jose Altuve, who has recently started to regain his form after a month-long struggle, appears ready to make a significant impact. Secondly, Jake Meyers' enhanced plate discipline this season is becoming increasingly beneficial for the team's lineup.

Jake Meyers of the Houston Astros has showcased a significant improvement in his offensive approach early in the season, with his manager Joe Espada noting that "he's not chasing" pitches outside the strike zone, a vital shift in plate discipline. His chase rate dropped from 31% last year to 23.5%, categorizing him in the 75th percentile among major leaguers. This selectivity has led to a reduction in his swing-and-miss rate and a notable increase in contact rate, which now stands at a career-high of 87.2%.

Entering his recent game against the A's, Meyers boasted a .300 batting average and .770 OPS, showcasing his commitment to a refined approach at the plate. With an increased focus on inside-zone pitches, he’s also shown improvement against breaking balls, hitting .314 compared to his struggles last season. The challenge remains to maintain consistency throughout the season, especially after a promising start followed by past performance dips.

The Houston Astros bullpen is proving to be a pivotal asset, particularly in the later innings. In a recent game against the Tampa Bay Rays, Astros relievers upheld a slim lead, securing a 4-3 victory. Jake Meyers provided the go-ahead home run in the seventh inning after starter Colton Gordon left the game tied. The top leverage relievers, including Josh Hader, played crucial roles in maintaining the lead.

The Astros built an early cushion for Gordon, who earned a 3-0 lead early on. Despite allowing three runs in 5⅓ innings, he pushed through to help the Astros capitalize on their lead. Hader converted his 12th save of the season, and the Astros improved to 20-1 when leading after seven innings. Manager Joe Espada is monitoring the bullpen's depth closely, especially with potential starters being discussed for upcoming games.