Had it not been for some sloppy finishing in front of goal, the Blues would have been out of sight before the half-time whistle, but they had to wait until Juan Mata's 55th-minute strike to take the lead. Oscar followed up with Chelsea's second while Frank Lampard and John Terry made it a comfortable victory.
League 1 Brentford offered little by way of an attacking threat, but Uwe Rosler's side must be applauded for holding out for as long as they did. Brentford's performance was a far cry from the one that earned them a 2-2 draw at Griffin Park a few weeks back, but the Bees will be rightly proud of their exploits in the FA Cup this season.
With Chelsea now facing an away trip to Middlesbrough in the next round, Bleacher Report rates the performances of the men who helped get them there.