Joe Gray Jr. had a day, perhaps one of his best, for Low-A Carolina in Milwaukee’s system on Tuesday. The ex-Hattiesburg High standout went 3-for-6 with a grand slam, six RBIs, four runs and a stolen base. A second-round pick in 2018, the 6-foot-1, 195-pound outfielder scuffled in his first two pro seasons, batting under .200, but is at .239 with five homers, 18 RBIs and five bags for the Mudcats. Over his last four games, Gray is 7-for-20 with three bombs. Once ranked among the Brewers’ top 10 prospects, he has dropped off the mlb.com chart. Only 21, he is certainly capable of a resurgence. Missing the 2020 season didn’t help. Gray hit .182 with two homers in 24 games in the rookie Arizona League in 2018 and .164 with three homers in 31 games in the advanced rookie Pioneer League in 2019. … Jake Mangum, the former Mississippi State and Jackson Prep star, has made a smooth adjustment to Double-A pitching. Moved up as part of the injury-riddled New York Mets’ roster shuffling, Mangum is batting .385 in three games at Binghamton in the Double-A East. He homered and drove in four runs Tuesday. He was hitting .206 in A-ball. … Delvin Zinn, the Itawamba Community College product from Pontotoc, is batting .275 with eight RBIs, 13 runs and 14 steals, tops in the High-A Central, for South Bend in the Chicago Cubs’ system. Zinn swiped 30 bags in 2019. (He was involved in a rare benches-clearing brawl that led to four ejections on Tuesday in a game against Fort Wayne; Zinn was not ejected.) … Ex-MSU standout Hunter Stovall, back in Colorado’s system after a brief detour with Philadelphia, is hitting .264 with a homer and nine RBIs for High-A Spokane. … Jordan Westburg, the 30th overall pick out of State last summer, is raking at a .373 clip with three homers and 18 RBIs for Baltimore’s Low-A Delmarva team. He might not be long for that level.