Mathis will be suspended four games for a violation of the league's PED policy. He is coming off a career-best season, in which he recorded 19 1/2 sacks in 16 games.
Former Eagles safety
Anderson is expected to fill the void for Antoine Bethea, who signed with San Francisco in the offseason. Anderson had 11 tackles and two forced fumbles in 14 games played last season for the Eagles. He has one career interception.
The website notes corner Greg Toler was plagued by injuries last season, increasing the urgency for Indy to retain Davis.
Bethea had 108 tackles, two interceptions and six passes defensed last season. It was the fifth time in the last six years he recorded 100-plus tackles.