
Here is the picture I used:

The result


Like you see on the bhed above, I used the "Smudge Tool" but it doesn't always give good results because the player detail is lost (for example, his dimple is no longer there and his face expression is gone).
So if anyone here would like to give some tips, I need is someone to list what type of Photoshop tools I can use for blending. Thanks for the help.