Leeds United were displaced at the top of the Championship by West Brom, who defeated Derby County 2-0 on Wednesday.
Hull City fought hard but were beaten at West Brom, who move back to within a point of Championship leaders Leeds United.
West Brom dominated against Birmingham but could not score, while Louie Sibley and Rhian Brewster produced heroics for Derby and Swansea.
As well as scoring twice against Middlesbrough in the Championship, Rhian Brewster made a powerful statement.
Arsenal reportedly must decide on Pierre-Emerick Aubameyang's future by next month amid Real Madrid links.
Marcelo Bielsa was a happy man after Leeds won on the same day West Brom and Fulham had to settle for draws in the Championship.
After West Brom won on Tuesday, second-placed Leeds United moved back within four points of the Championship pacesetters.
The Championship's top two - Leeds United and West Brom - won again on Saturday to strengthen their grip on the automatic promotion places.
Rhian Brewster scored to give Swansea City a late lead at Hull City, but the hosts hit back to secure a point on Friday.
Leeds United come away from Brentford with a commendable point, while Nottingham Forest suffered a shock home defeat.