From this topic original post:
"Firstly I search as many full photos from https://www.gettyimages.ca/ as possible, then I individually search for the best possible photo for any players not on Getty, crop all of them one by one to where it looks best (not just a severed head) remove.bg one by one after then in Photoshop I resize width % to around 125-130 depending on photo then when copied in template I set layer height to 1.5 in, center the image, sharpen, remove black and white matte, jersey swap and edit any players that need proper team apparel"