Since taking over as the Arizona Cardinals head coach, Ken Whisenhunt has had an open competition policy. Whether you were a first-round pick or the team's biggest free-agent acquisition, if you weren't the best player at your position, you weren't going to start.
Because of that open competition policy, there have been quite a few interesting training camp battles during Whisenhunt's tenure in Arizona.
From presumably washed up veteran Kurt Warner beating out the supposed future of the franchise in Matt Leinart in 2008, to career journeyman Paris Lenon holding off big money free agent Stewart Bradley last season, Whisenhunt has shown time and again that every job is up for grabs.
This year will be no different, as the Cardinals boast a mixture of both young talent itching to get out onto the field and savvy veterans not ready to give up their spots. Here's a look at the five training camp battles you're going to want to pay attention to this offseason.