Horwitz went 1-for-4 with a solo home run in Tuesday's win over the Reds.
The Blue Jays launched five homers off Carson Spiers in the first five innings Tuesday, with Horwitz's blast being his seventh of the season. The 26-year-old has maintained an everyday role for Toronto while bouncing between first base, DH and occasionally second base, but Horwitz is slashing just .217/.304/.400 through 17 games in August with three homers, seven RBI and 11 runs.