The Chicago Cubs are going to be cautious with Shota Imanaga while the left-hander recovers from his first hamstring injury. Imanaga was placed on the 15-day injured list on Monday with a mild strained left hamstring.

Imanaga, 31, strained his left hamstring when he went to cover first base in the sixth inning of Sunday's 4-0 loss at Milwaukee.

The Chicago Cubs will be without their top starter for at least the next two weeks. Left-hander Shota Imanaga went on the 15-day injured list Monday.