Gui.Box - Sprite

Hello everyone, I'll cut to the chase, thanks for dropping by.

So, I have a box which i want to add a sprite(image) to it instead of text.

I've done this:

 spriteRenderer = model.GetComponent<SpriteRenderer>();
         iconTexture = spriteRenderer.sprite.texture;

My only problem here is that the model is using a spritesheet and when i call icoNTexture I get the whole spritesheet and not just the first frame of the sSheet. What am I missing?

Thanks for your time and help! have a good one.