Indianapolis Colts middle linebacker Shaquille Leonard is active Sunday and will make his season debut against the visiting Tennessee Titans.
He missed the first three games after undergoing surgery for a back injury in the offseason. He had been dealing with nerve issues that caused pain in his lower extremities.
The three-time Pro Bowl selection and three-time All-Pro has piled up 538 tackles and 15 sacks in 58 games over his first four seasons. Leonard, 27, also has 17 forced fumbles and 11 interceptions, returning one of the picks for a touchdown.
The Colts also activated defensive tackle DeForest Buckner, who had been listed as questionable with an elbow injury.
The inactive players for Indianapolis are safety Julian Blackmon, quarterback Sam Ehlinger, cornerback Dallas Flowers, center Wesley French, wide receiver Dezmon Patmon, offensive tackle Luke Tenuta and defensive tackle Chris Williams.
For the Titans, the inactive players Sunday are defensive backs Ugo Amadi, Amani Hooker and Theo Jackson; linebackers Wyatt Ray, Ola Adeniyi and Zach Cunningham; and offensive lineman Le’Raven Clark.