The Bengals had their hands in many metaphorical cookie jars on Friday. We've already noted that the has attended four Pro Days on the day and now add a fifth. All 32 NFL teams were represented at Oklahoma State's Pro Day to watch their high profile athletes. Specifically, Bengals wide receivers coach, James Urban was in attendance noting the workouts of quarterback Brandon Weeden, wide receiver Justin Blackmon and other notable Cowboys.

There was a lot of buzz surrounding Blackmon's workout, especially because he opted not to run the 40-yard dash at the Combine. He wowed scouts with his time of 4.46 seconds, quelling any doubts about the star receiver's speed. If there was any glimmer of Blackmon falling to the Bengals at No.17, it faded today with Blackmon's time. Though he performed well in the other drills at the Combine, Blackmon still participated in much of the same at his Pro Day and did well there as well.

Weeden participated in a limited fashion on Friday and opted really only to run. He was faster than most suspected he would be, posting a 4.8 second time in the 40-yard dash. It seems that he decided to lean on his throwing performances from the Combine and Senior Bowl for scouts. The quarterback has anywhere from a late first to second round grade, mostly because of his age.

One defensive prospect that the Bengals could be interested in is safety Markelle Martin, and unfortunately, Martin decided not to participate in the drills at the Pro Day. Martin is projected as a second to fourth round pick, though NFL Network's Mike Mayock revealed today that Martin underwent arthroscopic knee surgery recently. Mayock also said that he expects Martin to workout at some point before the draft. All of the results from the Oklahoma State particpants can be found here.