HITC Sport understands Premier League and Championship clubs Arsenal, Tottenham, West Ham United and Charlton Athletic are ready to bid.
Sunderland failed to win against Southampton in the Premier League at the weekend.
Aston Villa have been linked with former Birmingham City and current Hull City boss Steve Bruce.
West Ham United are going strong in the Premier league at the moment.
Pundit remains unclear whether Liverpool will keep or sell the Belgian.
Christian Eriksen thinks his side should have taken all three points at White Hart Lane on Saturday, but says Spurs scored too early.
Rangers are already working on summer signings, according to chairman Dave King.
Leeds United won against Bolton Wanderers in the Championship at the weekend.
Wolverhampton Wanderers signed Mike Williamson from Newcastle United during the January transfer window.
Adam Matthews has left Sunderland for Bristol City.
O'Halloran was signed by Rangers boss Mark Warburton a year ago, but could be on his way out of Ibrox already.
HITC Sport understands the Luton Town boss is in the frame for the Nottingham Forest vacancy.
Brentford manager Dean Smith has dropped a big hint over what is causing the hold-up in Scott Hogan's move to West Ham United.
Aston Villa boss Steve Bruce has conceded defeat in his pursuit of Jordan Rhodes.
Swansea City and Sheffield Wednesday have both been active in the January transfer window.
Newcastle United are looking to utilise the loan market in January.
Aston Villa boss Steve Bruce still hasn't landed any of his top targets in January and the news that Alex Smithies will be staying at QPR doesn't help.
The Peruvian legend is currently a free agent after leaving Al Jazira.
Wolverhampton Wanderers and Brighton & Hove Albion are in competition for Blackburn Rovers winger Ben Marshall.
Barnsley's Adam Hammill talks up Leeds United fixture.