The Green Bay Packers have announced the signing of undrafted free agent wide receiver Terrell Sinkfield on Tuesday. Sinkfield played four years at Northern Iowa University, and caught some pre-draft fame by posting a controversial 4.19 second time in a 40-yard dash drill at the Minnesota Pro Day earlier this spring. The time would broke Titans running back Chris Johnson's Scouting Combine record of 4.24 seconds set in 2008.

Terrell Sinkfield Blazing Fast 40 Time: 4.19 seconds! (via NBBMedia)

Note that Sinkfield and his agent were the ones claiming he ran a 4.19 and he was actually officially timed at 4.33 seconds, but that's still an extremely impressive time.

Sinkfield recorded 76 catches for 1,097 yards and 10 touchdowns in his career at Northern Iowa, and Badger fans might remember him from that pesky Panthers team that pushed Wisconsin in a narrow 26-21 home victory last fall.

At 6'1 and 192 pounds, the Minnetonka, Minnesota native appears to have enough size, to match with his jaw-dropping speed, that he could challenge some of the unproven wide outs for a roster spot. The key to Sinkfield making the 53-man roster this fall may come down to whether or not he can transfer his natural speed into a return specialist role. He only returned one punt and three kick-offs in his career at Northern Iowa, so it appears the learning curve will be steep.

University of Northern Iowa's Terrell Sinkfield Highlights (via Vincent Hanna)

After looking at his senior highlight tape, Sinkfield appears to have soft hands and good body positioning when going up for a catch, and his speed is NFL-caliber. It's also apparent that the quarterback situation at Northern Iowa was less than ideal, and may have hindered Sinkfield's production throughout his career. If Sinkfield can run crisp routes and create separation with his speed, that won't be a problem in Green Bay.

With Greg Jennings moving on in free agency and Donald Driver retiring, the Packers are looking to build around their core of Jordy Nelson, Randall Cobb, and James Jones. Jarrett Boykin and Jeremy Ross will likely the be the favorites to earn playing time after that, but if someone like Sinkfield can solidify a roster spot through special teams play, he could see limited action in a reserve role.

MM on Sinkfield: He's fast. It's always nice to see fresh legs out there. — Brian Carriveau (@BrianCarriveau) June 11, 2013

As Brian Carriveau of CheeseHead TV reported after practice today, Sinkfield appears to already be on Coach McCarthy's radar (kind of). We'll see what happens during training camp and beyond, but it appears the Packers are preparing to add depth at the wide receiver position in order to find quality options at the No. 4-7 spots on the depth chart. Sinkfield will likely have to beat out at least five other wide receivers in order to make the final cut, which would be quite an accomplishment in such a short time period with the team. If nothing else, it adds a little intrigue when watching the second half of preseason games this August.

Josh VanDyke covers the Green Bay Packers for Acme Packing Company. He is also currently a sports writer for MLive.com. Follow him on Twitter: @JVanDyke24

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