Imagine Editing- Colour change

I found this image on the internet i used Photoshop to manipulate it. I used the polygon select tool to make a close selection around the skater in the middle. Then i inversed the slection so the background was selected. I wanted to make my skater stand out so by inversingthe selection i could turn the background black & white. I did this by removing all the Hue and Saturation from the selected background.
So my final outcome was a skater in full colour on a black & white background. This shows the skater is the center of attention.