Seattle Mariners right-handed closer Andres Munoz has established himself as a high-end closing option for fantasy managers after posting a 1.92 ERA (2.88 FIP), 0.99 WHIP, 60 saves, 160 strikeouts, and 54 walks in 121 2/3 innings for the Mariners in the last two seasons. The 27-year-old Mexican reliever had career highs in ERA (1.73) and saves (38) last year while also striking out 83 batters and posting a strong 1.03 WHIP in 62 1/3 frames. Munoz's 88.4% team save share was second-best among closers in 2025. He's no stranger to injuries, but Munoz has been an All-Star the last two years while staying healthy. His slider is one of the nastiest pitches in the league among relievers. For a Mariners team that should be in contention again in 2026. Munoz has high-end fantasy upside, although walks could be an issue. RotoBaller has him ranked as the No. 4 fantasy closer.

Even though Atlanta Braves outfielder Ronald Acuna Jr. has played in over 100 games just four times in his eight big-league seasons, which includes two torn ACLs, he's a top-10 overall fantasy player at RotoBaller heading into the 2026 campaign. The five-time All-Star, former Rookie of the Year, and MVP has league-winning upside when healthy, but he's also among the biggest first-round risks because of his lengthy injury history. Acuna played in only 95 games in 2025, slashing .290/.417/.518 with a .935 OPS, 21 home runs, 42 RBI, 74 runs scored, and nine steals in 412 plate appearances. It was a bit worrisome that he had only nine stolen bases after recording 73 in his last full season in 2023, but he should run more another year removed from knee reconstruction. On the bright side, Acuna is still on the right side of 30 and can do things that most other ballplayers can't. He's a five-category contributor that will be hard to pass up in the first round of fantasy baseball drafts.

The season-ending elbow injury to Seattle Mariners right-hander Logan Evans means that right-hander Emerson Hancock will enter spring training built up as a starter, according to Adam Jude of The Seattle Times. Hancock, who was the team's first-round pick back in 2020, made the transition to a relief role late last year and gave up just two runs in 8 2/3 innings out of the bullpen in September. The 26-year-old went 4-5 with a career-worst 4.90 ERA, 1.38 WHIP, and 64:31 K:BB in 90 innings over 22 appearances (16 starts) in his third big-league season with the Mariners. Even though Hancock has a better shot at being in the Opening Day starting rotation in Seattle as the No. 5, it's not a lock at all. He will most likely be in a swing role again in 2026, limiting his fantasy appeal to AL-only leagues. In his three MLB seasons, Hancock has been a below-average pitcher with nothing that really stands out in his arsenal.

The Boston Red Sox agreed to a minor-league deal with free-agent right-hander Vinny Nittoli on Monday, a source told Ari Alexander. The deal includes an invitation to spring training. Nittoli has pitched in the major leagues for four seasons with the Athletics, New York Mets, Baltimore Orioles, Philadelphia Phillies, and Seattle Mariners, but he's only thrown 18 2/3 frames. The 35-year-old veteran has a 2.41 ERA and 1.07 WHIP with 13 strikeouts and five walks in 15 relief appearances. Nittoli didn't pitch at all in the majors last year and had a 4.85 ERA with 46 strikeouts and 15 walks in 39 1/3 innings at Triple-A. He will most likely start the 2026 campaign at Triple-A Worcester. Nittoli is not on the fantasy radar in any leagues.