Bengals WR Chris Henry underwent season-ending surgery for his fractured left forearm Monday morning and when the Bengals put him on injured reserve they replaced him on the roster with guard-tackle Scott Kooistra.
Left guard Evan Mathis said his ankle is on a week-to-week basis after he got hit in a pileup in Sunday's 17-7 win over the Ravens.
"It could have been a lot worse," said Mathis, who actually hurt the ankle in the previous drive before he came out when someone fell on it a second time.
Because of the lack of guards and with the possibility of Mathis missing more than one game, Kooistra's departure lasted six days. Kooistra, a seven-year veteran who has played his entire career with the Bengals, was cut last week when fullback Fui Vakapuna was re-signed.