Bath had England back Anthony Watson sent off after 50 minutes as they fell to a 30-10 defeat at home to Saracens.
Bath’'s only score in the opening 40 minutes was a single penalty courtesy of George Ford. The away side grabbed two true through Will Fraser and Mike Ellery, with Owen Farrell kicking eight points.
In fact Bath’'s only try of the game came in the second half, with replacement Leroy Houston crossing over.
Saracens secured the bonus point win with two second half tries from Chris Ashton and a conversion from Farrell.
After a wonderful opening seven minutes, it was the visitors who opened the scoring. A wayward clearing kick from Chris Cook led to an opportunistic break from Saracens which culminated in Fraser crashing over from two metres out.
The champions extended their lead to ten points shortly after, with Farrell carrying on his form from the Six Nations.
Another Farrell penalty on 27 minutes saw Saracens begin to pull away from their opposition.
Saracens continued to show their dominance when early replacement Ellery took advantage of a wonderful flat pass from Alex Goode to dot over in the corner.
Bath finally opened their account on the stroke of half-time with a penalty from Ford after Mako Vunipola was penalised for the third time at the scrum.
Despite a good start to the second half for Bath, their momentum was halted when Watson was given a red card for taking out fellow England international Alex Goode in the air.
It went from bad to worse when Bath scrum-half Chris Cook was shown yellow a few minutes later for a dangerous tackle on Saracens flanker Mike Rhodes.
With the two-man advantage, Saracens were quick to pounce. A try for Ashton on his comeback from a ten-week ban extended their lead to 22 points.
Despite being two men down, Houston crossed for Bath’'s first try of the game as Saracens took their foot off the gas.
However, the London side secured the bonus point with ten minutes to go thanks to a well-worked inside pop from Fraser to Ashton, and the England man crossed for his second of the game.
Yellow Card: Cook
Red Card: Watson
Try: Fraser, Ellery, Ashton 2
Con: Farrell 2
Pen: Farrell 2
Red Card: Watson
Bath: 15 Anthony Watson, 14 Semesa Rokoduguni, 13 Jonathan Joseph, 12 Ollie Devoto, 11 Horacio Agulla, 10 George Ford, 9 Chris Cook, 8 Amanaki Mafi, 7 Francois Louw (c), 6 Matt Garvey, 5 Dave Attwood, 4 Charlie Ewels, 3 Henry Thomas, 2 Rob Webber, 1 Nathan Catt
Replacements: 16 Tom Dunn, 17 Max Lahiff, 18 David Wilson, 19 Leroy Houston, 20 David Denton, 21 Guy Mercer, 22 Will Homer, 23 Rhys Priestland
Saracens: 15 Alex Goode, 14 Chris Ashton, 13 Marcelo Bosch, 12 Brad Barritt (c), 11 Duncan Taylor, 10 Owen Farrell, 9 Richard Wigglesworth, 8 Billy Vunipola, 7 Will Fraser, 6 Michael Rhodes, 5 George Kruis, 4 Maro Itoje, 3 Petrus Du Plessis, 2 Schalk Brits, 1 Mako Vunipola
Replacements: 16 Jared Saunders, 17 Richard Barrington, 18 Titi Lamositele, 19 Alistair Hargreaves, 20 Kelly Brown, 21 Neil De Kock, 22 Mike Ellery, 23 Ben Ransom
Referee: Gregory Garner
Assistant Referees: Simon McConnell, Paul Dix
TMO: Graham Hughes