The constant smile on Sean Davis' face grew a little bigger today when the Steelers second-round pick was signed to a four-year contract.

Davis' dad wanted nothing more than for his son to be drafted by the Steelers. The elder Davis, who has battled cancer, is a Steelers fan, especially a fan of Coach Mike Tomlin. Davis was thrilled that his dad's wish came true, as he is the person who is his biggest inspiration.

"He always worked two jobs, even when he battled cancer," said Davis. "Seeing him, he is my role model, my inspiration. He is why I work so hard so he can sit down and relax and rest and watch our dreams come true.  

"My dad always wanted me to play for Coach Tomlin. It's a dream come true for real. He always wins. He is a great coach and he is all about winning. This team wins Super Bowls. It's a top caliber team. It's just awesome. It's the football tradition here. It's 100 percent football and that is what I am all about."

Davis, a safety from Maryland, played in 50 games in four seasons with the Terrapins, starting 40 of them. He was a player who was all over the field, accounting for 305 tackles in four seasons. His senior year he led the defense with 70 solo stops, and was tied for the team lead with three interceptions.

While he will be used at safety, he brings versatility with him as he also played corner at Maryland.

"I am a very versatile player," said Davis. "I can do a lot. I played strong safety, I played cornerback at Maryland. Moving around playing safety is what I do. I am very comfortable back there. Mentally I feel like I am capable of doing a lot. Physically I can do a lot. I am big and strong like a safety and quick like a corner. My mental game, I see it at a different angle that you might not get at safety and vice versa. I feel like I am well prepared."

Davis is the fourth of the Steelers draft picks to sign, joining sixth-round selection Travis Feeney and seventh-round picks Demarcus Ayers and Tyler Matakevich who previously signed.