OWINGS MILLS, Md. — The injury report remained troubling for the Ravens Thursday as they continued preparations for their Week 4 meeting with the Carolina Panthers. Cornerback Jimmy Smith (knee/ankle) returned to the practice field and appeared to be moving well during the media viewing portion of the workout, but linebacker Terrell Suggs (groin), defensive end Chris Canty (knee), and defensive tackle Timmy Jernigan (knee) all remained sidelined with various ailments. Starting left tackle Eugene Monroe hasn’t been officially ruled out for Sunday’s game yet, but Wednesday’s knee surgery is expected to sideline him for at least a few weeks. The Ravens claimed former San Diego Chargers defensive end Lawrence Guy off waivers on Wednesday, which could be an indication of concern for Canty’s availability against Carolina. Guy has been assigned No. 67 with his new team. Wide receiver Steve Smith and tight end Owen Daniels were also non-participants during Thursday’s practice as they received a veteran day off. Smith was watching practice without being suited up while Daniels, who is now the starting tight end after the season-ending hip injury suffered by Dennis Pitta, was absent from the field. Running back Bernard Pierce (thigh) was present and working fully