Scarlets 12 Ulster 12: The Celtic League title will go down to the last day after Ulster were held to a draw by the Llanelli Scarlets at Stradey Park.
Ulster now lead Leinster by two points and travel to the Ospreys next week, while Brian O'Driscoll takes his side to Edinburgh.
The visitors stormed into a 12-0 lead at Llanelli, but two tries from home prop Phil John ensured a share of the spoils in a scrappy match.
Ulster deservedly went in front as wing Tommy Bowe hacked on Isaac Boss's kick before touching down in the corner. David Humphreys' conversion dropped just wide as the Ulstermen took a deserved 5-0 lead after 18 minutes.
Ulster powered on and another try followed five minutes later as wing Andrew Maxwell capitalised on Andrew Trimble's break in midfield. Humphreys this time made sure of the conversion to seal a 12-0 lead.
A double blow befell Ulster before the break. First they lost skipper Simon Best, who was carried off on a stretcher with a suspected broken ankle, and then outside half Humphreys was replaced by Jonny Bell after a cut on the eye.
Humphreys later returned in the second half.
Llanelli took heart and replied just before the break with a try from prop Phil John, but outside half Craig Evans missed the extras.
Ulster had a chance to extend their lead in injury-time but Paddy Wallace stroked his penalty just wide.
Llanelli began the second half with gusto and it led to them levelling matters.
A magnificent drive from the forwards, which began just inside Ulster's half, saw them crash over the line with John claiming his second try. Craig Evans converted to level the scores.
As action heated up, so did the passion and a number of scuffles came close to marring the spectacle.
There was to be no more scoring, even though John went close to claiming a hat-trick.
He was driven over the line but referee Graeme Hannah decided the ball had not been grounded.
Craig Evans and Humphreys squandered penalties and neither side found a winning touch.
The night posed huge significance for the hosts as they said goodbye to two favourite sons, Gareth Jenkins and Nigel Davies.
It was their last match before taking up their roles as head and attack coach with Wales. Both were handed special plaques during a pre-match ceremony and received a standing ovation from the 6,000-plus crowd. PA