New York Mets third baseman Brett Baty is on the bench on Monday against the visiting Chicago Cubs. Baty will take a seat against Cubs right-hander Jameson Taillon in favor of Mark Vientos, who hit a walk-off home run to help the club beat the St. Louis Cardinals on Sunday. Vientos is hitting seventh for the Mets on Monday. Baty is also slumping, going 3-for-25 in his last nine games to drop his season line to .256/.322/.317 in his first 82 at-bats. The 24-year-old has added just one home run, nine RBI and nine runs scored. Vientos, who made his season debut with the Mets over the weekend, went 3-for-4 with the game-winning home run and two RBI in his first two games played. It's been a nice start, but playing time is going to be hard to come by for Vientos as long as J.D. Martinez stays healthy.

Toronto Blue Jays shortstop Bo Bichette is getting a day off on Monday against the visiting Kansas City Royals. With Bichette getting a blow, Isiah Kiner-Falefa is starting at shortstop and is hitting eighth against Royals right-hander Jonathan Bowlan. Rookie Addison Barger will play third base and bat in the nine-hole for Toronto. It's a good time for the 26-year-old Bichette to take a day off, as he has just one hit in 18 at-bats in his last five games to drop his season slash line to .210/.263/.305 with just one home run and 10 RBI in 105 at-bats. Kiner-Falefa will be a pretty mediocre, low-upside DFS option on Monday against the Royals. The 29-year-old has never faced Bowlan and is hitting .240 (18-for-75) on the year with a homer, six RBI and two stolen bases.

Baltimore Orioles outfield prospect Heston Kjerstad is not in the starting lineup yet again on Monday as the team takes on the visiting New York Yankees at Camden Yards. This will be the fifth straight game that Kjerstad is not in the O's starting lineup after he started the first two contests following his promotion from Triple-A Norfolk. If this continues to be the case, don't be surprised if the Orioles send the 25-year-old left-handed hitter back to the minors so that he can play every day. The former second overall pick in 2020 out of Arkansas has gone hitless in his first five major-league at-bats with three strikeouts. It's been hard for manager Brandon Hyde to find Kjerstad consistent playing time with Colton Cowser playing so well.

Baltimore Orioles infielder Jordan Westburg (illness) is back in the starting lineup on Monday against the visiting New York Yankees after missing the series finale on Sunday against the Oakland Athletics with a stomach illness. Westburg is starting at second base and batting seventh against Yankees right-hander Clarke Schmidt. Fantasy managers will want to get the 25-year-old back into all starting fantasy lineups, as he's hit a strong .304/.360/.543 on the year with a .903 OPS, five home runs, 19 RBI and four stolen bases in 92 at-bats over his first 25 games played. Westburg isn't as attractive in DFS formats in the seven-hole. He has one hit in his two career at-bats against Schmidt.

St. Louis Cardinals catcher Ivan Herrera will not start in the team's series opener against the Detroit Tigers. With Willson Contreras starting behind the plate and Paul Goldschmidt starting as the designated hitter, Herrera will take a sit for the second time in three days. The young catcher was off to a hot start at the plate but has since cooled down. He is hitless over his last 15 at-bats with six strikeouts. The 23-year-old doesn't have much fantasy value right now, considering he is behind Contreras on the depth chart.So, he is likely only a fantasy option in extremely deep formats.