Houston Astros starting pitcher Spencer Arrighetti is off to a terrific start this season, posting a 1.32 ERA and 2.3% HR/FB rate across seven appearances. So far, he's 6-1 with 8.78 K/9, 5.49 BB/9, and 0.22 HR/9. The walk rate is less ideal, and we don't love that his FIP is more than two full points higher than his ERA, but the results speak for themselves. Arrighetti has been a valuable starter in fantasy baseball this season, and he hasn't allowed an earned run in his last two starts (12.1 innings). As long as he keeps it up, he'll remain a priority target on the waiver wire for the rest of the season. Currently, Arrighetti ranks as the #86 starter in RotoBaller's latest fantasy baseball rankings, and he's still available in approximately to be added in 42% of leagues.

San Diego Padres first baseman Gavin Sheets has recorded a base hit in five consecutive games, offering consistency and upside in fantasy baseball. Over his last 13 games, Sheets is 15-for-39 (.385) with four home runs, 10 walks, and nine strikeouts. This level of productivity has turned him into a priority waiver wire addition, especially for fantasy managers in search of someone to occupy a first base or outfield spot. In total this year, Sheets is slashing .255/.335/.503 with a career-high 139 wRC+. He also has nine home runs, putting him on pace to slug 20+ homers for the first time in his career. Despite being a key bright spot for a 31-win Padres team, Sheets is rostered in just 29% of fantasy baseball leagues. That means he's available in 71% of leagues, making him a priority target for plenty of fantasy managers.

Chicago Cubs starting pitcher Matthew Boyd (knee) has been on the injured list since early May due to a left meniscus injury, but he is still worth stashing in fantasy baseball. Boyd posted a subpar 6.00 ERA before the injury, but it came over a small sample size, and we know that he wasn't fully healthy. We're far more encouraged by what he did well: striking out batters. The southpaw had 11.63 K/9, 2.25 BB/9, and 0.75 HR/9 through his first five starts this year. He also had a 2.59 xFIP, suggesting that his ERA was skewed by bad luck and he's due for some favorable regression over a larger sample size. Once Boyd gets back from the IL, we'd expect him to lower his ERA while continuing to post an impressive K/BB ratio. The 35-year-old is expected to make two rehab starts soon, so he's likely targeting a mid-June return to the major league rotation. That's not too far away, so managers should consider stashing Boyd in anticipation of his activation. At the moment, he's available in 52% of fantasy baseball leagues.

Philadelphia Phillies outfielder Brandon Marsh (finger) sprained his right middle finger in Tuesday night's win over the hosting San Diego Padres at Petco Park and is sitting out of the series finale on Wednesday, according to MLB.com. Adolis Garcia will make the start in right field and is batting seventh for the Phils versus Padres right-hander Walker Buehler. As of now, Marsh's finger injury isn't believed to be serious, and he's considered day-to-day. With an off day coming on Thursday, he could be right back in the starting nine for a showdown on Friday night in Los Angeles against the first-place Dodgers. The 28-year-old left-handed-hitting outfielder still isn't going to provide fantasy managers with a ton of power (he has five homers in 181 at-bats), but he's currently batting a career-high .326 (59-for-181) with 24 RBI, 28 runs scored, and four stolen bases in a stacked Phillies batting order. Garcia is barely hitting over the Mendoza Line in 2025 in his first year with the Phils, but he has hit .250 with a 1.000 OPS in eight career at-bats against Buehler with a home run and three RBI.