Conley (knee) wasn't spotted at Thursday's practice, Aaron Wilson of Sportstalk 790 Houston reports.
Conley also missed Wednesday's session, so what the wideout is able to do Friday will be pivotal with regard to his chances of suiting up for Sunday's season finale against the Titans. In Houston's Week 17 loss to the 49ers, Conley logged 49 of a possible 67 snaps on offense, while catching one of his two targets for minus-2 yards and carrying once for three yards.