The New York Yankees announced on Tuesday that they signed left-hander Tyler Matzek to a major-league contract and selected him to their active roster and designated right-hander Yoendrys Gomez for assignment in a corresponding move. The Yankees signed Matzek to a minor-league deal back in February, but now he'll join their big-league bullpen for the time being. The 34-year-old veteran southpaw began the season in the minors due to an oblique injury that he suffered in spring training in March, but now he's past the issue and will provide New York with a lefty arm out of their 'pen. In 5 2/3 relief innings for Single-A Tampa and Triple-A Scranton/Wilkes-Barre this year, he gave up two earned runs while walking two and striking out seven. Matzek has a 3.72 career ERA, 1.36 WHIP and just one save in his six major-league seasons.

Tampa Bay Rays outfield prospect Chandler Simpson is starting in center field and is hitting leadoff on Tuesday against the hosting Arizona Diamondbacks and right-hander Brandon Pfaadt. The Rays' No. 7 prospect, per MLB Pipeline, was called up from the minors to make his major-league debut on Saturday against the New York Yankees, and he's gone 2-for-8 with a double, RBI, stolen base, run scored and a strikeout in his first two games. This will be the second time in his first three MLB games that the 24-year-old speedster will hit leadoff for Tampa. Simpson isn't going to provide much pop for fantasy managers -- he had only one extra-base hit in his first 78 plate appearances at Triple-A Durham before his promotion -- but he's worth rostering in deeper formats for his speed, especially if he sticks in the leadoff spot and sees regular playing time.

Cincinnati Reds left-hander Wade Miley (elbow) is starting his minor-league rehab assignment on Tuesday night with High-A Dayton, according to The Cincinnati Enquirer's Charlie Goldsmith. Miley continues his recovery from an internal-brace procedure/Tommy John surgery last May and still has a long ways to go before he's considered an option for the Reds' major-league starting rotation. Even if the 38-year-old veteran soft-tosser makes it back to the big leagues in the first half of the 2025 season, he's not going to present fantasy managers with much upside, if any at all, in the strikeout department. Those in mixed leagues should have more attractive options to choose from. Miley only made two starts for the Milwaukee Brewers before being shut down in 2024 and has a career 7.0 K/9 in 14 MLB seasons.

Cincinnati Reds left-handed reliever Sam Moll (shoulder) is starting his minor-league rehab assignment on Tuesday with Triple-A Louisville, according to The Cincinnati Enquirer's Gordon Wittenmyer. Moll is working his way back since landing on the injured list in the middle of April due to an impingement in his left shoulder, but he's getting closer to making a return to Cincinnati's bullpen. The 33-year-old veteran southpaw isn't a fantasy asset, though, especially after a rough start to his 2025 campaign with four earned runs allowed in two innings pitched as well as three walks and one strikeout. When he's activated from the injured list, Moll will operate in a middle-relief role. In his six seasons in the majors, he has a 3.60 ERA, 1.28 WHIP, one save and a 168:77 K:BB in 162 1/3 innings pitched.

Cincinnati Reds catcher Tyler Stephenson (oblique) is starting his minor-league rehab assignment with Triple-A Louisville on Tuesday, according to The Cincinnati Enquirer's Gordon Wittenmyer. Stephenson worked out with Louisville over the weekend and is now ready to return to game action this week. The 28-year-old backstop hasn't played in a game since spring training in mid-March and opened the year on the 10-day injured list, so the Reds won't rush him back. In the meantime, veteran Jose Trevino will continue to operate as Cincy's primary catcher at the major-league level, with Austin Wynns backing him up. Although he has yet to make is 2025 debut, Stephenson is worth stashing in all fantasy leagues as one of the better power-hitting catchers in the league when he's healthy. He had a career-high 19 long balls and drove in 66 runs in 138 games in 2024.