Chicago Cubs manager Craig Counsell said that outfielder Ian Happ (oblique) is expected to come off the 10-day injured list at some point during the team's current series in Miami against the Marlins. Happ went through a full pre-game workout on Saturday and is eligible to come off the IL on Tuesday before the second game of the series. The Cubs apparently liked what they saw from Happ during his workout over the weekend, so the 30-year-old switch-hitter should rejoin Chicago's starting lineup on either Tuesday or Wednesday, at which point fantasy managers will want to get him back into their starting lineups. Catching prospect Moises Ballesteros is likely to be sent back to the minors after going 1-for-12 at the plate after his recent call-up. Happ is currently slashing .269/.364/.381 with three homers, 19 RBI, 29 runs and two stolen bases in his 160 at-bats in 2025.

In his first game back in the big leagues with the Chicago Cubs in Monday's series opener against the hosting Miami Marlins and right-hander Edward Cabrera, third base prospect Matt Shaw is at the hot corner and batting ninth. The Cubs' top-ranked prospect, per MLB Pipeline, struggled in his first taste of the big leagues earlier this season, going 10-for-58 (.172) with a homer, three RBI, 10 walks and 18 strikeouts in 18 games played. It prompted the Cubs to send the 23-year-old back to the minors, where Shaw responded by slashing .286/.409/.560 with six home runs and five stolen bases in 24 games at Triple-A Iowa. While the nine-hole isn't exactly where fantasy managers want to see Shaw, he will have the opportunity to move up the lineup if he shows improvement in his return to the big leagues. He's worth a waiver-wire pickup everywhere for his five-category upside.

St. Louis Cardinals third baseman Nolan Arenado has been dropped to the sixth spot in the lineup for Monday's series opener against the visiting Detroit Tigers and left-handed opener Sean Guenther. Monday's contest will be the first time that Arenado has hit anywhere other than the cleanup spot for the Red Birds. The move down the batting order comes after he's gone 3-for-25 (.120) with two RBI, two runs, a walk and four strikeouts in six games since May 12. He's hitting .254 (15-for-59) with a homer, double, five RBI and eight runs scored in 15 games in the month of May, and Arenado only has four long balls in his first 166 at-bats on the season. The former Colorado Rockies star has shown diminished power with St. Louis the last couple years, and it has continued into 2025. Arenado has never faced Guenther in his career.

Baltimore Orioles catcher Adley Rutschman is retreating to the bench for Monday's series opener against the hosting Milwaukee Brewers. Maverick Handley will do the catching for right-hander Dean Kremer and will bat ninth against Brewers right-hander Quinn Priester. Like most of the Orioles players, Rutschman has been a massive disappointment in fantasy so far in 2025. The 27-year-old switch-hitting backstop is batting just .209 (32-for-153) with four home runs, 11 RBI and 18 runs scored. He's been even worse in May, going 10-for-54 (.185) with four doubles, a triple, two RBI, four runs, three walks and nine strikeouts in 15 games. Rutschman hasn't homered since April 20. Fantasy managers should look elsewhere at the catcher position in DFS than Handley, who has gone 1-for-14 with two RBI as a backup catcher in Baltimore this year.

Detroit Tigers right-hander Casey Mize (hamstring) threw five innings in a simulated game at Comerica Park on Monday, according to The Detroit News' Chris McCosky. Mize is on track to come off the 15-day injured list and start against the division-rival Cleveland Guardians on Saturday. It's good news for the Tigers after they just placed right-hander Reese Olson (finger) on the IL on Monday. The 28-year-old has been sidelined since May 8 with a strained left hamstring. Mize will be worth a look as a fantasy streamer in his first game back against a Guardians team that is sporting a .686 OPS, which ranks only 22nd in baseball. Although Mize has a below-average 21% strikeout rate in 42 2/3 innings this year, it's the highest mark of his career and he has a nice 2.53 ERA, 1.01 WHIP and 35:9 K:BB in his seven starts for Detroit.