In 43 games at Nebraska, recorded 135 tackles (61 solos) with 13 sacks, 33 stops for losses, 43 quarterback pressures, 9 pass deflections and 2 forced fumbles He earned Verizon/CoSIDA Academic All-District VII honors in each of his last three seasons and in 2002 was a National Football Foundation/College Hall of Fame Scholar-Athlete ($18,000 postgraduate scholarship recipient) As a senior started the first six and final three games at right defensive end and recorded 38 tackles (17 solos) with seven sacks, 13 stops for losses and 18 QB pressures and was Second-team All-Big 12 Conference.

As a junior, he was a Second-team All-America selection by Football News as well as a Second-team Consensus All-Big 12 Conference pick after starting every game at right defensive end and recording a career-high 52 tackles (27 solos) with five sacks and 17 stops for losses.

In 2007, he was voted as a defensive captain and started the first 11 games of the season and missed the rest due to injuries.

[3] Kelsay announced his retirement on February 27, 2013, after 10 seasons in the NFL, all with the Buffalo Bills.

[5] Kelsay was married on March 13, 2004; his wife's name is Natalie and they had a daughter, Harper, on February 9, 2006.