Former Rangers forward Hateley believes that the former Bolton Wanderers prospect would be a good addition to Mark Warburton’s side.
The former England international has also claimed that the current Gers squad is a good one.
“There have obviously been a couple of bids for O’Halloran and while I haven’t seen that much of him, I know he’s mobile, technically decent and quick,” Hateley told The Scottish Sun.
“If he was to come in it would keep everyone functioning and concentrating on the final goal, which is putting ball in the net. I think in general the squad’s in decent shape, everyone’s fit and well. Consistency has been very good.
“Fortunately there have been no major injuries, and that continuity and consistency has helped what we get on the pitch. In the January window we’ve brought in a couple, but another one could be helpful.”
O’Halloran has been on the books of St. Johnstone since January 2014 and has a contract until June 2017.
The Saints, who finished fourth in the Scottish Premiership table last season, are doing relatively well this campaign.
Tommy Wright’s side are fifth in the standings at the moment with 32 points from 22 matches.
Rangers are at the top of the Scottish Championship table at the moment with 56 points from 22 matches.
Mark Warburton’s side are eight points clear of second-placed Hibernian, who have a game in hand.