Speed recorded 13 tackles (10 solo) in Saturday's 23-19 loss versus the Texans.
Speed finished Sunday's 23-20 win over the Raiders with 12 tackles (eight solo).
Speed finished with 13 tackles (10 solo), including a tackle for a loss, and two passes defensed in the Colts' 29-10 loss to the Falcons on Sunday.
Speed had ten total tackles in Saturday's win over Pittsburgh.
Speed (knee) was a full participant in Tuesday's walk-through.
Coach Shane Steichen said Tuesday that Speed (knee) is "feeling good" and "will be all right," Nate Atkins of The Indianapolis Star reports.
Speed (knee) has been ruled out ahead of Sunday's contest against the Bengals.
Speed (knee) is listed as questionable ahead of Sunday's game against the Bengals.
Speed (knee) was non-participant on Wednesday's practice estimate.
Speed is expected to take over as the Colts' starting weakside linebacker after the team waived Shaquille Leonard on Tuesday, Stephen Holder of ESPN.com reports.