This is it, the biggest of the big home matches, one of two games the Jack Army look forward to, Cardiff home and Cardiff away, and especially after doing the double over them last season for the first time.
However, form goes out the window in local derbies and both teams will be going flat out for the win and bragging rights.
Cardiff have an interim manager in first team coach Mark Hudson, who took over a month ago after the departure of Steve Morison.
I thought they were unlucky on Tuesday night losing their key central defender Jack Simpson to a harsh penalty and sending off with 18 mins gone. QPR went on to win 3-0, making it two consecutive defeats for Cardiff.
The same night the Swans fought hard to erase the nightmare match at Burnley by beating 4th placed Reading.
Two goals down after half an hour through elementary defensive errors again and all looked lost. Darling pulled one back with a looping header from a Grimes corner before half-time and two further goals, one each for Cooper and Fulton sealed the win and a remarkable turn around to bag the 3 points.