Joseph Mack: Everything you need to know

Mack is not in the lineup for Wednesday's contest against the Diamondbacks. Mack had made seven straight starts at catcher, so he's earned a day off. Liam Hicks will be behind the dish for the Marlins, Kyle Stowers is in the designated hitter slot and Heriberto Hernandez will cover left field.

Mack went 4-for-4 with three runs Tuesday in the Marlins' 10-6 win over the Diamondbacks. With a .203 batting average, the rookie catcher was barely sitting above the Mendoza Line for the season at the end of May, but his bat has begun to heat up in June. Through seven games on the month, Mack has gone 9-for-23 with a home run and a double, lifting his season average up by 50 points in the process. Mack is still expected to provide most of his value to the Marlins through his defense behind the plate, but he offers a bit of pop and should play frequently enough to make for a viable lineup option in fantasy leagues that start two catchers.

Mack went 1-for-3 with a two-run home run and an additional RBI during the Marlins' 7-3 win over the Nationals on Tuesday. Both teams failed to score through the first four innings of Tuesday's game, but Mack quickly changed that with a two-run homer off Miles Mikolas in the fifth inning, which was followed up by consecutive solo homers from Heriberto Hernandez and Otto Lopez. It was the first home run of Mack's major-league career, and he gave the Marlins an insurance run in the ninth with a sacrifice bunt that brought Liam Hicks home. Mack is slashing .214/.257/.300 with nine RBI, four extra-base hits and eight runs scored across 76 plate appearances since being called up from Triple-A Jacksonville in early May.