Stephen Piscotty will bat second Tuesday against the Reds.
This makes back-to-back starts for Piscotty out of the No. 2 spot. The 24-year-old has batted .400/.450/.514 through his first 40 plate appearances in the majors and is gaining momentum in mixed fantasy leagues.
Reds optioned OF Kyle Waldrop to Triple-A Louisville.
Waldrop was called up over the weekend and struck out in his only at-bat. The 23-year-old should be back in September.
Reds activated LHP Manny Parra from the 15-day disabled list.
Parra has been out since July 19 with a left elbow strain. He returns to a 4.00 ERA over 24 relief appearances this season.
Brett Gardner is not in Tuesday's lineup against the Red Sox.
Gardner will take a seat against left-hander Henry Owens. Chris Young is starting in left field and will bat second.
Aaron Sanchez was suspended three games by MLB for throwing at Royals shortstop Alcides Escobar on Sunday.
Things were tense all weekend between the clubs and Sunday's incident caused both benches to empty. Sanchez is expected to appeal the suspension. Blue Jays manager John Gibbons has also received a one-game suspension for coming back onto the field following his ejection earlier in the game.