Matakevich (undisclosed) was activated from the active/PUP list Tuesday, Sal Capaccio of WGR Sports Radio 550 Buffalo reports.
Matakevich (undisclosed) was placed on the active/PUP list Tuesday, Alec White of the Bills' official site reports.
Matakevich and the Bills agreed to a two-year contract Monday, Ian Rapoport of NFL Network reports.
Matakevich totaled four solo tackles, one pass deflection and one interception during Sunday's 40-0 win over the Texans.
The Bills signed Matakevich to a one-year contract extension Monday. WGR 550 in Buffalo reports.
The Bills have signed Matakevich to a two-year deal for up to $7.15 million, Jay Skurski of The Buffalo News reports.
Matakevich failed to record a tackle in Sunday's 28-10 loss to the Ravens.
Matakevich had a team-high seven tackles (six solo) in the Steelers' 17-7 preseason win over the Chiefs on Saturday.
Matakevich had one tackle (solo) during Sunday's 16-13 win over Cincinnati.
Matakevich was the assumed starting ILB for the Steelers after OTAs, ESPN.com reports.