Waller (suspension) has been reinstated following a one-year suspension and he watched practice Tuesday, freelance NFL writer Jeff Zrebiec reports.
Waller figures to rejoin the tight end mix at some point this offseason, but a deep group that includes two rookie tight ends awaits him. Waller appeared in 12 games for the Ravens when he last played in 2016 and he'll attempt to crack the 53-man roster again with a strong showing in the preseason.