Manchester United ended the weekend three points clear of Chelsea with five Premier League games remaining after being held to a 2-2 draw at relegation-threatened Middlesbrough yesterday.
United led through Cristiano Ronaldo but after two well-taken goals by Boro's record signing Afonso Alves either side of half-time, the champions needed an equaliser from Wayne Rooney 16 minutes from time.
United lead the way with 77 points to the 74 of Chelsea, who won 2-0 at Manchester City on Saturday. Arsenal are third on 71 after drawing 1-1 with fourth-placed Liverpool.
United, who have a far superior goal difference to the two other contenders, host Arsenal next weekend and still have to visit Chelsea.
Middlesbrough are now four places and nine points clear of the relegation zone and should begin to relax.
United started well and deserved their early lead, secured when Ronaldo tucked in his 27th league goal of the season from a low Michael Carrick cross.
Boro levelled in the 35th minute when Brazil striker Alves scored his first goal for the club when he ran on to a long ball to finish with confidence.
Alves then showed why Boro paid £12 million for him, neatly finishing after another long ball caused problems for United, who sorely missed the injured Nemanja Vidic and lost his centre-back partner Rio Ferdinand during yesterday's game.
United, though, also looked dangerous and levelled when Park Ji-sung crossed from the right for Rooney to snatch a point.
"It was a fair result," United manager Alex Ferguson said.
"There was a period in the second half when I had to re-arrange the back four and we could have lost two or three goals. But it's in the nature of our club to never give in.
"We've got a point today, I looked upon this as a difficult fixture. They don't get big crowds here normally but when Manchester United and other big teams come it lifts them."
Middlesbrough manager Gareth Southgate was delighted to see a return from his investment in Alves.
"We've been waiting for lift-off really," he said of the Brazilian. "I knew it would take time for him to settle in but he's given people a glimpse of what he can do."
In yesterday's other league game Everton moved back to within three points of Liverpool with a 1-0 home win over Derby.
Midfielder Leon Osman got the goal after 56 minutes to take Everton to 60 points but, with an inferior goal difference and tough games against Chelsea and Arsenal to come, the Champions League place probably looks out of reach for the Toffees.