It is six defeats in seven games for Ulster after they went down at the death by 7-3 in the Heineken Champions Cup clash with La Rochelle tonight.
Dan Mc Farland's men were leading as the clock turned red, but the defending champions won the game with the final play.
Earlier Munster survived a second half fightback from Northampton and remain on course for the knockouts.
It finished 27-23 at Thomond Park.
Munster led 24 to 0 at half-time but lost Jack O' Donoghue to a red card after 22 minutes.
Earlier Leinster defeated Gloucester by 49-14 in the game at Kingsholm.
In the Challenge Cup, Connacht thrashed Brive 61-5, Alex Wooton with a hat-trick of tries at the Sportsground.
Full time, Bonus point win ✅
Tries from Alex Wootton (x3), Cathal Forde, Conor Fitzgerald, Conor Oliver, Finlay Bealham and John Porch.
It's away to Newcastle next weekend before we take on the Lions here at The Sportsground.#CONvBRI | #ChallengeCupRugby pic.twitter.com/Ru1K1mr6J6
— Connacht Rugby (@connachtrugby) January 14, 2023
Everton are only off the foot of the Premier League on goal difference following a 2-1 defeat at home to bottom side Southampton.
Fans staged a sit-in protest after the game, which board members were advised to stay away from.
Manager Frank Lampard knows results must improve if he's to stay in his role.
At the other end of the table, second-placed Manchester City let a lead slip in losing 2-1 at United in their derby before Liverpool's 3-nil defeat away to Brighton.
In the late game, Brentford beat Bournemouth by 2-0.
Celtic have beaten Kilmarnock 2-0 in their Scottish League Cup semi-finalat Hampden.