luckymann, you can add an image with a transparent background. Click on Images for the jersey. If you set it to make full front logo, you can then re-size it if needed. You can then repeat the process to add a second image as a layer. You can use Google or Bing to find an image in PNG format or you can remove the background yourself and save as a PNG. There are online programs to remove backgrounds but I don't know how effective any are.
https://www.google.com/search?q=remo...t=gws-wiz-serp