So I’m curious who, if anyone, has the right of way in this situation where the batter, running to 1st base is intentional run into at the base by the 1st baseman who fielded the ball. I would have expected the fielder to touch the bag, but peel off or swerve inside the baseline to miss the runner, just as a pitcher is taught when they run to 1st from the mound to accept a throw from the 1st baseman as opposed to intentionally crossing the base path and running into the base runner.