This is David, an Ultimate Frisbee player seen here playing for the Hucking Fooligans (daisy). 

Here is another player, who by coincidence just happened to be named David too. This David plays for Armed and Hammered (light blue). 

Wait a second? Are they the same person? Are they twins? They can't possibly be the same person right? I mean, one's wearing a daisy shirt and one's wearing a light blue shirt. Yeah, they must be two totally different people. 

It's also possible that David changed shirts between games. But that would be just silly.