I'm new here and am seeking help in a potential safety risk that came up this weekend in my son's t-ball preseason tourney. The team that we played, and beat, for the championship produced a very odd situation that I've never seen in baseball. The the opposing team had a very fast, quick, big and aggressive kid playing pitcher. F1. F1 was a one man show that was chasing down almost every hit and making play after play. I've never seen a child this fast and aggressive. F1 had no problem chasing down runners for outs and would slide into the bag on force outs instead of making the tag on runners resulting in several collisions that could have been avoided. As well as 2 situations where f1 did not get to the force out in time but still slid into the occupied base, taking out the runner that he was just behind. Bang bang plays. I had my fill and asked the ump to get control of the situation because f1 had hurt a few of the runners making these plays, and the response was that he was making a legal play. Is is this correct? If not, what rules are being missed? I dont want to hinder a kid because of his God given ability but I also don't want injuries to occur from what i view as excessive contact. I apologize for the length of my post but wanted to capture the scenarios and am concerned not only about the safety of our kids but f1s as well. Thank you in advance.