For this exercise, I used Camera Raw to achieve most of the effect. I open the image of the football player in Camera Raw. I made adjustments to Contrasts, Shadows, and Clarity first. Then I adjusted the Blacks and Highlights sliders. The next step was to tweak the Vibrance slider. My final step was to do a slight adjustment to the Whites slider.
I like the Football Player one the best. It works better with a lighter background that can get darker versus the black background with the boxer. This also seems to work better on sports pictures than regular ones.
I then opened the image in Photoshop. I added a new layer and then did a High Pass sharpening to give the photo more of an HDR look. (I really like this look – especially on a sports photo)