Championship quiz: How well do you know the top four?

This weekend could prove to be a pivotal one in the race for promotion to the Premier League.

The top four sides in the Championship are due to meet in the space of 24 hours, with Brentford hosting West Bromwich Albion on Friday, before Fulham's trip to Leeds United on Saturday.

But how much do you really know about the second tier's high-flying quartet? Take our quiz to find out...