Nemanja Matic netted an injury-time winner as Manchester United, who went out to as big as 12/1 for the victory with Sky Bet, recovered from 2-0 down to beat Crystal Palace 3-2 in Monday night's Premier League game.
United midfielder Paul Pogba gave the ball away with a long attempted pass before Andros Townsend gave Palace a 1-0 half-time lead.
Patrick van Aanholt doubled Palace's advantage moments after the restart but United fought back to earn a dramatic success at Selhurst Park.
The Red Devils went out to 12/1 for the win with Sky Bet when 2-0 down and Palace were odds-on at 1/4 to claim a three-point haul at that point.
Chris Smalling headed home in the 55th minute before Romelu Lukaku swept in an equaliser for United from close-range with 14 minutes left.
Jose Mourinho's side could be backed for the victory at a biggest price of 10/1 when 2-1 behind.
Nemanja Matic then fired home a stunning winner from 25 yards in added time to claim three points for the Red Devils, who were available at 12/1 in the in-play Sky Bet odds just before taking the late advantage.
A 3-2 win for United could be backed at as big as 40/1 with Sky Bet during the match.
United are odds-on at 1/33 for a top-four finish, while Palace can be backed at 7/4 to go down.
Post-match reaction
Nemanja Matic told Sky Sports: "After 2-0 it was very difficult for us to come back because they had the crowd behind them but we showed character.
"We believed until the end and we did exactly what the manager wanted from us. He said at half-time that we had to do more than in the first half and I'm happy for these three important points.
"We are improving. We need to do more for sure, because in let's say small games we have dropped some very important points.
"The quality is there for sure but we have to be honest, we have to do more. There are five or six teams that can realistically challenge for the title.
"I hope that next season, and the end of this season, we will learn from our mistakes and hopefully we can do better."
Asked to reveal what he had said at half-time, Jose Mourinho said: "I cannot tell you half of the things that I told (to the players).
"I can only tell you the other half, and the other half was about the tactical positioning. In the first half Alexis (Sanchez) was on the left, in the second half he was behind Lukaku.
"Instead of three midfielders we played only with two. We gambled a little bit with a two against two at the back without Matic's protection in front of them.
"The message was: half I cannot tell you because you would have lots of (bleeps) on the television, half of it was tactical information."
Crystal Palace boss Roy Hodgson said: "The only thing that has disappointed me today is the fact once again we go away with no points.
"I didn't think we were that much in danger. It wasn't even impossible that we'd score the third goal."
