Carr missed the Iowa game last year, but he comes into this year’s matchup leading the Big Ten in receiving. King, the reigning Jim Thorpe Award award winner as the nation’s best defensive back, provides Carr’s biggest challenge yet on the outside. Typically, King lines up on the right side of Iowa’s defense, so it’s unlikely that he will shadow Carr on every play if past trends hold true. But when King does cover Carr, it will be important for Carr to win some of these battles; without at least some production from Carr, it’s tough to see the passing game having success.