The Cubs placed left-handed starter Shota Imanaga on the 15-day injured list Monday with a left hamstring strain, a day after he got hurt when going to cover first base. The Cubs made the move before the opener of its series against San Francisco. Right-hander Gavin Hollowell was recalled from Triple-A Iowa. Imanaga got hurt during Sunday’s 4-0 loss at Milwaukee after going to cover first base on a potential double play in the sixth inning of what was then a scoreless game. The Brewers had runners on first and second with one out Sunday when Christian Yelich hit a grounder toward first baseman Michael Busch. Imanaga left the mound to try to complete a 1-6-3 double play, but he was in clear discomfort as he headed toward first base. As Yelich beat the throw to first, Imanaga grabbed the back of his left leg. After Cubs officials checked on Imanaga and removed him from the game, the pitcher walked with a clear limp as he headed to the dugout. — AP