Austin Riley is the 3-hole hitter and third baseman for Atlanta, picked by some experts as the 2023 World Series favorite. That’s a key role, perhaps the most important role held by any Mississippi product heading into the new MLB season that launches Thursday. Here are some others of note: Kendall Graveman, the ex-Mississippi State star, is penciled in as the closer for the Chicago White Sox, who are looking to rebound from a disappointing 2022 season. Graveman, replacing Liam Hendriks (cancer treatment) as the bullpen stopper, has a 4.04 career ERA with 16 saves in 28 opps since converting from starter to reliever in 2020. … Nathaniel Lowe, a former State standout, is the first baseman and a middle-of-the-order hitter for Texas, which has spent a lot of money of late and expects to contend for the postseason. Lowe had a breakout year in 2022 (.302, 27 homers, .850 OPS). … Louisville native and former East Central Community College slugger Marcus Thames is the new hitting coach for the Los Angeles Angels. With a lineup featuring Shohei Ohtani, Mike Trout and MSU alum Hunter Renfroe, the Angels are fairly desperate to make the playoffs in Ohtani’s potential walk year. Thames worked with the New York Yankees previously, so he knows pressure. … Buck Showalter, the State star of yesteryear, is entering his second season as manager of the New York Mets, another big spender with World Series aspirations. Showalter won manager of the year honors in 2022 — his fourth such honor — but saw his club fall short — again — in the playoffs. … That brings us back to Riley, the ex-DeSoto Central High standout and Mississippi Braves alumnus. He batted .273 with 38 homers and 93 RBIs last season — finishing sixth in MVP voting and winning All Mississippi Baseball’s Cool Papa Bell Award — and will be counted on for similar numbers this year. P.S. Roster news: Former MSU standout Brent Rooker has made Oakland’s opening day roster. The outfielder/DH, who has 10 MLB homers on his ledger, got very limited at-bats with San Diego and Kansas City last year. Cut from the A’s active roster was Ole Miss alum Chad Smith, who debuted with Colorado last season. Right-hander Smith, a 2016 draftee by Miami, posted a 7.50 ERA in 15 games for the Rockies in 2022. Taylorsville’s Billy Hamilton did not make the Chicago White Sox’s roster. The veteran outfielder was in spring camp as a minor league invitee. … Pitchers Taylor and Tyler Rogers of the San Francisco Giants are the 10th set of twins to play in the majors and may soon become the fourth set to play for the same team in the same game. They opposed each other in a game last April but are now teammates with the Giants. Among the 10 sets of twins to reach the majors are Jackson natives Stan and Stewart Cliburn. Stan, a catcher, played for the California Angels in 1980 and Stewart, a pitcher, was with the team in 1984-85 and ’88. Both were with the Angels’ Triple-A club in 1986-87, though Stewart was injured during that time. Their dream of becoming the first twins to serve as batterymates in the majors never materialized.