Madden NFL Mobile 21 is one of the many sports-oriented games that allow you to build up your team via virtual cards. This style of play has become wildly popular over the years thanks to FIFA Ultimate Team and NBA 2K's MyTEAM modes. Now, it has become the epitome of many mobile sports games.

The players you can earn is totally random (with the exception of certain rewards) which makes it fun and interesting. It's essentially like going to the store and picking up a pack of sports cards and ripping them open, only here you're actually putting the cards to work.

So really, it's almost like a combination of card collecting mixed in with a bit of fantasy football ins some ways. Again, the cards you collect are mostly at random, but with that said, what are a few key positions to look out for in your card collecting career? This is more a general football thing, but can most definitely be applied to Madden Mobile. In the end, it's up to you what you think is most critical, but here's some food for thought as you prepare to battle it out on the gridiron.