Alabama football is back.

The defending national champions worked out indoors in shorts on day one of spring practice Tuesday afternoon. It was the first look at the 2018 edition of the Crimson Tide and we had a chance to watch a few different positions. As you'll see in the videos, Damien Harris and Najee Harris led the group of running backs as they worked under Joe Pannunzio for the first time.

The second video features head coach Nick Saban throwing to his defensive backs. That's a position where Alabama lost five different starters and will have to put together a completely different secondary in 2018.

And finally in the third video below, get a look at Alabama co-offensive coordinator and wide receivers coach Josh Gattis work with his group for the first time. Gattis came to Alabama from Penn State in the offseason.