It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
This image was acquired from
Keywords from Image Description:
football american football sport ball game play football american pigskin team competition american football player helmet athlete field football player player football game running back runner ball carrier fullback referee sports official offense uniform action run muscular powerful man college college football ncaa muscle strength
Page 2017 Free-images.com. All images are Public Domain