Jenas was one of England's most highly rated young talents back in 2002, when he was sold for £5 million.
The 32-year-old is currently without a club and working as a pundit for the BBC, having suffered a knee injury at the end of last season with his QPR contract expiring.
Writing on Twitter during former club Newcastle's loss to Liverpool, he responded to a supporter who was unhappy with his criticism of the Geordies, claiming his former manager would not be happy.
Jenas took exception to this, insistent on his admiration for Sir Bobby Robson as the inspiration behind his decision to sign for Newcastle.
After a bright start, Jenas' Newcastle career fizzled out, and he went on to sign for Tottenham Hotspur where he played for seven seasons.
Whether his career would have turned out differently had he chose elsewhere is another matter, but perhaps Sir Bobby Robson's exit in 2004 was a turning point for him.
Pressed if he would have made the same decision to join Newcastle again by a fan who said 'surely you wouldn't make the move', Jenas admitted so, also responding with a comment that the late Sir Bobby could have been an antidote to the club's problems had cancer not caught up with him :