SUNDAY'S latest Old Firm encounter is all about one man – and it's not the referee.
Rangers' signing of El Hadji Diouf has been the main talking point ahead of their fifth-round Scottish Cup clash with Celtic.
Diouf has a long list of misdemeanours but the only one Hoops fans remember is when he spat on a fan during a UEFA Cup clash against Liverpool.
To be fair Diouf the past is the past and he's served his sentence, paid his fine etc. But in the heat of Old Firm battle he'll have to expect dogs' abuse from the away fans and do his best not to react to it.
The on-loan Blackburn star has talked a decent game since arriving in Scotland, even apologising for his behaviour that night at Celtic Park.
His Rangers team-mates and management have praised his attitude and if he starts maybe he'll stay out of trouble.
He'll be the main focus though and William Hill are asking what will happen to Diouf first if he starts and go 2-1 he’s fouled.
A free-kick against Diouf is 7-2, to score is 9-2, subbed 11-2, booked 11-2, sent off 20-1.
Being fouled looks the obvious call and you can try to pick the culprit. Scott Brown is the favourite at 7-2 ahead of Biram Kayal at 5-1.
The debut of Diouf, 10-1 at McBookie.com to be the first player booked, overshadows a contest which should produce goals.
SPL leavers Kenny Miller (21) and Conor Sammon (14) and are being chased hard for the Golden Boot by Celtic pair Gary Hooper (11) and Anthony Stokes (12).
Either of them to score first tomorrow pays 5-2 with William Hill. David Healy was an unused sub against Hearts but will be hoping for a dream debut against Celtic.
He is 7-1 at Chandler to score first, same price last. Celtic have had a penalty in every away league match in 2011 – and converted one at Ibrox in the last meeting of the pair.
To be given a penalty tomorrow the Hoops are 7-1 with William Hill.
Now to the game itself and with all derbies it's a tough one to call. Both meetings this season have ended in away wins and this could be another.
Although the Glasgow rivals are chasing the Treble this tie isn't the be all and end all. It's the title that matters and for that reason we could have a more open game than in recent clashes.
That could play into the hands of Celtic who currently possess a greater scoring threat and have more flair players with the likes of Kris Commons, Paddy McCourt and Cha and Ki if they're considered after their Asian Cup exploits.
Rangers have lost experienced midfielder Lee McCulloch for the rest of the season and that's a bad blow.
The other Scottish Cup clash sees Aberdeen entertain Dunfermline and this should be a home win.
The Dons have built up a reputation for losing to lower-league sides but Craig Brown can stop that bad habit and lead his men to the last eight.
Dunfermline, a best 9-2 at Coral and Stan James among others, have some quality players but have struggled in recent weeks. They needed a replay to see off Third Division Montrose and I reckon the twin strikeforce of Scotland new boy Chris Maguire and Scott Vernon will see them off.
However, it could pay to back penalty taker Paul Hartley at 10-3 with William Hill to score at any time as the Dons should spend the majority of the match in or around the opposition box.
Stokes or Hooper to score first
(5-2, William Hill)
Hartley to score
(10-3, William Hill)