Miles called the strain “mild,” and believes the Cubs will know more about Schwarber's condition after letting him rest for the weekend. Miles expected more information to be released before the Cubs start their series against the St. Louis Cardinals on Monday.
Since being called up from Triple A in July, Schwarber, 22, has been one of Chicago's best hitters, batting .270 with 13 home runs and 38 RBIs in 48 games.
In July, Schwarber was named MVP of the MLB All-Star Futures Game.
The Cubs drafted Schwarber in 2014 as a catcher, but he has spent the majority of his playing time as a designated hitter and left fielder this season.
- Kayla Lombardo