Deledio moved to the Giants following the end of the 2016 season and unfortunately missed the Tigers the premiership the following season, only managing to play 13 games for GWS after dealing with a series of injuries.
The 31-year old suffered another injury over the weekend as he was already recovering from one, and Wallace says Deledio’s body has failed him too many times.
“It hasn’t worked,” Wallace told The Match Committee.
“I’m a Brett Deledio fan but it hasn’t worked.
“He got three or four games in a row earlier this season I was so rapt for him and it looked like he might have been able to turn it around.
“The devastation of leaving the club after being there for such a length of time and they go on and won the flag – I know he was devastated about all that.
“I was hoping he would get a run at it but you would have to say that it hasn’t worked.”
Deledio spent 12 years at Richmond, playing 243 games. Hopefully Deledio can make his return to the field in a couple months and help lead the Giants to a lengthy finals run.