News Limited newspapers and Gold Coast radio stations are reporting that the Titans will meet to decide if Walker has broken the players' code of conduct after allegedly being ejected from a bar for bad behaviour.
Walker has had a troubled career dogged by off-field incidents and has drifted from club to club in recent seasons. The speedy three-quarter had stints with Brisbane, South Sydney, the Sydney Roosters and Melbourne before the Titans recruited him as their final signing for their entry to the NRL this season.
The 27-year-old made a memorable debut for the Titans, scoring the club's first-ever try in the round-one loss to St George Illawarra. But he broke his thumb late in the game and has not played since.
The Titans' managing director Michael Searle says it would be unfair to detail Walker's indiscretion before the matter is dealt with by the club. Searle admits it is not a police issue and does not involve the use of any illicit substance.
Searle says Walker has breached the Titans' code of conduct and says the matter will be dealt with as quickly as possible. Walker has been suspended indefinitely.