The 33-year-old has also attracted interest from QPR and Aston Villa.
It is said he would be interested in a deal with a London club, and he is allegedly a big fan of Harry Redknapp.
But does he really want to join a side so deep in trouble ... even if it is only for two months?
And O'Neill is reasonably confident Cahill would favour the Black Cats.
Watch this space!
SUNDERLAND FIXTURES ...
Saturday January 5 15:00 FA Cup - 3rd Rnd Bolton Wanderers v Sunderland
Saturday January 12 15:00 Premier League Sunderland v West Ham United
Saturday January 19 15:00 Premier League Wigan Athletic v Sunderland
Tuesday January 29 19:45 Premier League Sunderland v Swansea City
Saturday February 2 15:00 Premier League Reading v Sunderland
Saturday February 9 15:00 Premier League Sunderland v Arsenal
Saturday February 23 15:00 Premier League West Brom v Sunderland
FA Cup third round draw:
Crystal Palace v Stoke
Brighton v Newcastle
Tottenham v Coventry
Wigan v Bournemouth
Fulham v Blackpool
Aston Villa v Ipswich
Charlton v Huddersfield
Macclesfield v Cardiff
Barnsley v Burnley
Manchester City v Watford
Swansea v Arsenal
Leicester v Burton
Millwall v Preston
Cheltenham v Everton
Derby v Tranmere
Crawley v Reading
Aldershot v Rotherham
Middlesbrough v Hastings
Oxford v Sheffield United
Southampton v Chelsea
QPR v West Brom
Peterborough v Norwich
Mansfield v Liverpool
Bolton v Sunderland
Nottingham Forest v Oldham
West Ham v Manchester United
Hull v Leyton Orient
Blackburn v Bristol City
Leeds v Birmingham
Southend v Brentford
Luton v Wolves
Sheffield Wednesday v MK Dons
BOLTON - REEBOK
How To Get There By Car & Where To Park
From The South:
M6 to Junction 21a, take eastbound M62 leaving at Junction 12. Follow signs for M61 (Bolton/Preston) and leave the M61 motorway at Junction 6. The ground is visible from this junction and is clearly sign posted.
From The North:
M6 to Junction 29 and take the M65 towards Blackburn. Leave the M65 at junction two and join the M61 towards Manchester. Leave the M61 at junction six. The ground is visible from this junction and is clearly sign posted.
John Walsh adds; 'Because of traffic congestion on the M60 (formerly M62), caused by the Trafford Centre, I would recommend that those supporters travelling from the South should take the North directions above. It is about 10 miles further but can save 30 minutes and a lot of frustration!'
There is a car park at the ground, but this costs £6 for cars (£12 for minbuses). Plus on my last visit the cars in the away section of the car park were packed in like sardines, meaning that away fans leaving early (my team had just been stuffed!) couldn't get a quick getaway as there were cars blocking them in. However a lot of the surrounding industrial estate units offer cheaper parking, usually around the £4-£5 mark. Some of these are located on either side of Lostock Lane. From the M61, go past the stadium on your left, move into the right hand filter lane and turn right at the traffic lights into Lostock Lane. If you continue down Lostock Lane and take a left hand turn before to the Bromilow Arms, then I noticed on my last visit that there was some street parking to be had at the bottom of this road. Neil Casson a visiting Tottenham Hotspur fan informs me; 'I've been to Bolton a couple times and parked at a factory unit on Cranfield Road, which is the first right off Lostock Lane. Its the first unit on the right as you enter Cranfield Road costs £3.50 and it's staffed for the duration of the game. Away fans are located in the South Stand, so it's just a short walk back to your car. The official car parks seem to be well snarled up and parking I recommend parking just away from the ground if you want a quick getaway'.
Gary Lovatt adds 'On the parking front, a handy little idea is to park at the Beehive pub which is on the roundabout (half a mile past the stadium coming from the motorway) where you pay £5 per car but get it all back at the bar. I also recommend the cajun chicken baguette there!' To get to the Beehive leave the M61 at Junction 6 and drive down towards the stadium. Then continue straight on past the stadium and the Beehive pub is situated at the next roundabout, on Chorley New Road.
Whilst Mark Pickering suggests; 'St Joseph's school on Chorley New Road, offers parking on matchdays at £4 per car. On reaching the roundabout with the Beehive pub, turn left and St Joseph's School is on the left hand side after about 250 yards. There is a path way from the school leading down to the stadium - allowing fairly rapid entrance and exit to and from the ground.'
Horwich Parkway railway station serves the stadium, with regular trains from Bolton's main railway station. Horwich Parkway is only a few minutes walk from the stadium.
Where To Eat & Drink?
Alas the favoured away pub of many years the Bromilow Arms has closed down. There is the Barnstormers on Lostock Lane (from the M61, go past the stadium on your left, move into the right hand filter lane and turn right at the traffic lights into Lostock Lane, the pub is down on the right) which does admit away fans. There is also a mixture of street parking and paid parking (at some industrial units) in this area.
There is also the Beehive Pub near to the ground where you can also park your car (see below). Otherwise alcohol is served within the ground, although for some games such as local derbies, the Club opt not to sell any. Alcohol available inside the ground, includes; Carling (£3.20), Worthingtons (£3), Magners (£3.30) and Echo Falls Wine (£3.70). In another good move then the Club allow your to pre-order and pay for your half time drinks, before the game has kicked off, through the purchase of tokens. Thus making it quicker to get your hands on your interval liquid refreshments.
There are a number of bars on the nearby Middlebrook Retail Park (Reebok Stadium is on the Middlebrook Retail estate). However most of these have bouncers on the doors that only admit home fans on production of a matchday or season ticket, There are though plenty of eating outlets on the Retail Park; KFC, Burger King, Pizza Hut, Subway and a Bolton Wanderers themed McDonalds as well as several other themed restaurants.