Sir Alex Ferguson says winning the Premiership this year would be one of his greatest achievements.
Ferguson is in a buoyant mood
The Manchester United boss has guided his team back into contention for the title after it looked like Arsenal would run away with it.
Taking a swipe at Gunners boss Arsene Wenger, he said: "Maybe this is my players' biggest-ever challenge in the Premiership, given Arsenal's triumphalism.
"It would be one of our greatest feats to win it simply because of the improvement in the Premiership, the lead Arsenal had, and our injuries before Christmas."
Arsenal are two points ahead of Manchester United, but the two teams meet at Highbury on 15 April.
Ferguson said: It's in our own hands if we win our games."
He jokingly referred to the title run-in as "squeaky bum time", adding "it's going to get very twitchy over the next few weeks.
"We should see a fantastic climax to the season."
Ferguson added he is hoping that Arsenal join his team in the Champions League quarter-finals.
United play Deportivo La Coruna on Tuesday having already qualified for the last eight.
"I want Arsenal to get through because it means more games for them," he said.