Once you can leave Whitechapel, in sequence 3 (i think) you should see a marker near top left of the map, Near the border of The City of London and Whitechapel, it has a black background with a yellow 'T' on it.
Go to it and speak the rather colourful character with a tall top hat. He will then open up the Fight Club and Race missions. Just complete all rounds in 3 different fight clubs.
Just wait for the yellow counter symbols and counter all the attacks with
, then punish with
. it isn't hard to beat the lowest 3 clubs.