Perrone, do you consider imitation a form of flattery? I hope so. Finding absolutely nothing interesting yesterday at the beach to shoot, and needing something to do with the new camera, your shots combined with a flyer for a local minor leage team, and I went last night to shoot some evening baseball shots. This is the first time ever shooting baseball (and only second time at a non-little-league game).
At night under lights I was shooting mostly F4 and some F2.8, and trying to keep the shutter speed up, so a lot of shots are in the 1200-3200 ISO range. Here is one at 2800 ISO, and there's quite a bit of noise in it (and a bit of action blur), but still a lot of good dynamic range left (those shadows were pretty dark, like on the ump's leg, but there's detail in them).
If anyone would like to see more (and I welcome criticism of how to shoot sports):