Heading into the season, MLB made interference calls around the bags a point of emphasis for umpires. Basically, the league wanted to legislate out of the game fielders blocking the bag with their legs. Still, it’s a seldom-called rule, and the selective enforcement understandably doesn’t sit well with most managers.

Starter Nick Pivetta attempted a pickoff play with second baseman Vaughn Grissom covering the bag. Byron Buxton, the runner at second, retreated to the bag, and was safe. However, Grissom blocked the base by dropping his knee, leading the umpires to rule obstruction and award Buxton third base.

Red Sox manager Alex Cora was ejected for arguing an interference call in the first inning of the opening game of a split doubleheader vs. Minnesota.

Red Sox manager Alex Cora was ejected just a few minutes into Game 1 of the Red Sox-Twins’ doubleheader Sunday.

An irate Alex Cora was ejected during the first inning of Sunday afternoon's game after arguing an interference call at second base.